US2254365A - Convertible toothbrush - Google Patents

Convertible toothbrush Download PDF

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US2254365A
US2254365A US277594A US27759439A US2254365A US 2254365 A US2254365 A US 2254365A US 277594 A US277594 A US 277594A US 27759439 A US27759439 A US 27759439A US 2254365 A US2254365 A US 2254365A
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section
bristle
handle
wire
curved
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Edward E Griffith
Elliott M Story
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    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B7/00Bristle carriers arranged in the brush body
    • A46B7/02Bristle carriers arranged in the brush body in an expanding or articulating manner

Definitions

  • This invention relates to toothbrushes and it is the general object of the invention to provide a toothbrush having a bristle section the contour of which can be altered at the will of the user.
  • the bristles In the ordinary toothbrush the bristles have a fixed contour because of the rigidity of the handle and the parts which carry the bristles. Some toothbrushes are made with a convex tooth engaging portion while others have concave contours. For proper cleaning of the outside of the teeth the bristle section should be concave, whereas the inner surfaces of the teeth are cleaned best with a bristle section which is convex. It is an important object of our present invention to provide a toothbrush the bristle section of which is flexible and provided with means to be manipulated by the user whereby the bristles may be made either convex or concave. In this way a single toothbrush can give the degree of cleaning which heretofore has been possible only with two brushes of different forms.
  • a normally curved member such as a wire
  • we have found it convenient to anchor the rotatable member in the end of the handle but we do not wish to be limited to this construction, since the handle as a whole may be made rotatable with respect to the bristle section as will be pointed out hereinafter.
  • toothbrushes at the present time are made with a handle composed of Celluloid or similar material of sufficient thickness to be substantially rigid.
  • our invention includes the provision of a bristle section which shall be flexible enough to respond to the forces exerted by the curved member, but in the practical application of our invention we have found several ways in which the bristle section can be made sufiiciently flexible even though Celluloid or similar material be used as an anchorage for the bristles.
  • other objects of our invention include structural changes in the usual bristle section which will lessen its rigidity, these changes in one form of the invention involving transverse grooves part way through the usual bristlesection.
  • Fig. 1 is a plan view of the preferred form of our invention
  • Fig. 2 is a side elevation of the brush shown in Fig. l with the bristle section concave and an intermediate step of changing the form of the bristle section is indicated in dotted lines,
  • Fig. 3 is a view similar to Fig. 2 but in which the bristle section is convex
  • Fig. 4 is a view of the rotatable unit as it would appear if removed from Fig. 2,
  • Fig. 5 is an enlarged vertical section on line Fig. 7 is a detailed view of the first modification of the flexible bristle section
  • Fig. 8 is a view similar-to Fig. 7 but showing the second modification of the bristle section
  • Fig. 9 is a view similar to Fig. 2 but showing a modification of the rotatable member which alters the contour of the bristle section.
  • the brush B is shown as having a body it made of Celluloid or similar material and of the usual form.
  • a plurality of separate units II which may be made of the same material as the body l0 and except as set forth hereinafter have the same general cross sectional area.
  • each unit is provided with bristles i2 which for purposes of illustration are shown to be all of the same 5 length, although this is not an essential feature.
  • CertainJpristles l3 may if desired be carried directly bythe handle II.
  • the units II I In order to connect the units II I provide a hollow binder having parallel spaced sides It which are connected at their ends as indicated in Fig. 1. This binder may be made of thin spring steel material'and is embedded as set forth in Fig. 2 in the outer parts of the individual sections II.
  • the units Ii are rigid but considered collectively provide a series of bristle carrying parts which are rendered flexible by reason of the binder l5.
  • Extending through the body II is a longitudinal bore which is in alignment with a series of similar bores 2
  • a steel wire 22 shown in Fig. 4 of slightly less diameter thanthe bores 20 and 2! is located within the bores and has the right end thereof as indicated in Fig. 4 normally curved as at 23. This curve is permanent and may have any desired radius of curvature, although we have found that a curve as illustrated in the drawing is quite sat isfactory.
  • the left end of the wire 22 is broadened as at 25 and is embedded in an extension 26 of the handle the cross section of which may be substantially the same asthe body ill.
  • the end 25 of the wire is non-circular and is therefore held against angular motion with respect to the end 28 so that when the latter is turned the wire will turn with it in the bores 20 and 2i.
  • the end 23 may have a rib 23 to fit into a complementarily formed transverse groove 29 in the end of the body It, the purpose of the rib and groove being to maintain the end 23 normally in the position shown for instance in Fig. 3 with respect to the body Ill.
  • the wire is possessed of a slight resilience which is suflicient to hold the rib in the groove.
  • the right end of the wire as shown in Fig. 1 may preferably fall short of the outer unit 30 of the bristle carrying section. It will also be seen from Fig. 5 that the wire is abovethe plane of the binder ii and is located between bristles.
  • the bristle section may be concave as shown in Fig. 2 in full lines duev to the fact that the end 23 of the wire is curved upwardly.
  • the end 23 will be given a half turn with respect to the body ll, passing through the dotted line position shown in Fig. 2 and ultimately reaching the position shown in Fig. 3, where the bent end 23 extends downwardly as indicated in dotted lines in Fig. 4 to cause the bristle carrying units to curve in the opposite direction to make the tooth engaging surface of the bristles convex.
  • the bristle section 43 is integral with the handle ll but is weakened by a series of transverse slots 42 which extend part way through the bristle section.
  • the Celluloid or other material of which the brush in this first modification form is shown possesses suflicient resilience so that when weakened as indicated in Fig. '7 it will respond to the changes exerted by the curved end 23 of the wire when the latter is turned.
  • the second modification shown in Fig. 8 has grooves 45 on one side of the bristle section 43 while other grooves 41 are on the opposite side, the bristle section being integral with the body section 48 as is the case with the first modification.
  • the transverse ,slots 45 and 4! weaken the bristle sec tion suiiiciently so that it can respond to the curved end 23 of the wire in a manner similar to that described in. connection with Fig. 7.
  • the curved end 23 has an inherent resilience permitting it to pass through the straight form shown in dotted lines in Fig. 2, but the resistance to bending oflered by the binder I5 is less than that offered by the curved end 23 and thelatter is therefore able to overpower the binder and require the latter to take the form of the curve 23.
  • the net force acting to curve the bristle section is of course the force with which the curved end 23 exerts a force which is directed. transversely of the length of the bristles, but
  • this force is nullified in the preferred form by the sides of the binder I5 and in the first and second modifications by those portions of the bristle section which are uncut and remain integral with the handle.
  • a toothbrush having a flexible bristle carrying section through which extends a mem- KI her having a normal curve and wherein rotation of the member with respect to the bristle section alters the shape of the latter.
  • the preferred form or by weakening the bristle section when the latter is made integral with the handle.
  • the wire or ,curved member can eitherbe fastened to an end of the handle separate from the latter as for instance in the form of the invention shown in Fig, 1, or the wire may be anchored in the end of the handle adjacent to the bristle section.
  • a handle section a member secured to the section and having a resilient normally curved end projecting from the section, a series of separate bristle carrying units each with a bore to receive the said curved end of the member, and a flexible binder secured to the handle and to each of the units to connect the latter to the handle section, said bristle units and binder forming a bristle section and the binder capable of bending on itself in a plane substantially parallel to the bristles to make said bristle section either concave, flat, or convex with respect to the bristles, relative turning of the sections causing the curved end of the member to turn in the units, the binder preventing lateral bending of the bristle section relatively to the handle section and causing the curved member to straighten as it turns in the units, continued turning of said curved member after becoming,
  • a handle section a group of bristle carrying units, said units separate from the handle and from each other, each unit having a bore therein, a flexible connector secured to each of the units and also secured to the handle section, said flexible connector bendable on itself in a plane substantially parallel t the bristles only and resisting lateral bending relatively to the handle section, and a Wire secured to the handle section and having a resilient normally curved part extending loosely through said bores, a half rotation of the sections with respect to each other causing the curved part of the wire to bend on itself in said plane to change the form of the connector and units, the connector in preventing lateral movement of the units causing the resilient curved part of the wire to straighten during the first part of said half rotation and said curved part of the wire returning to normal curved form during the latter part of said half rotation to produce a change in theshape of the connector and group of units relatively to the handle section, the resistance to bending offered by the connector being less than the resistance to bending offered by the
  • a handle section a group of bristle carrying units separate from the handle the handle section through a half rotation withv respect to the units causing the curved end of the wire to rotate within said units, the connector in preventing lateral movement of the units causing the resilient curved part of the wire to straighten during the first part of said half rotation and said curved part of the wire returning to normal curved form during the latter part of said half rotation to produce a change in the shape of the connector and group of units relatively to the handle section.
  • a handle section a bristle section integral therewith and provided with a series of bristles, a bore extending through the handle and bristle sections, the bristle section being rendered flexible by a series of transverse grooves therein, said bristle section bendable on itself only in a plane substantially parallel to the bristles because of said transverse grooves and capable of being concave, flat, or convex relatively to the bristles, and a wire secured to the handle section and rotatable said bores and having the resilient normally curved part extending into the bristle section, rotation of the wire in the bore causing the flexible bristle section to straighten the curved part of the wire and thereby cause the bristle section to become flat with respect to the bristles, the wire by continued rotation acting due to its resilience to assume normally curved form and bend the bristle section to a form curved oppositely to that which it had relatively to the bristles at the beginning of the rotation.
  • a bristle section carrying bristles, a series of transverse grooves to weaken the resistance of the bristle section to bending and'render the same flexible, said bristle section bendable on itself only in a plane substantially parallel to the bristles because of the direction of said grooves, said bristle section having a bore therein, a wire having a resilient normally curved part extending into the bore of the bristle section and normally bending said bristle'section in a given direction relatively to the bristle, and means to turn the wire a half rotation in the bore to cause a change in the shape of the bristle section to curve the latter in a direction relatively to said bristles in a direction opposite to said given direction, the bristle section by bending only in said plane causing the curved part of the wire to straighten during the rotation and said curved part thereafter resuming normally curved form to cause the aforesaid bending of the bristle section.
  • a handle section having a bore therethrough, a bristle section connected to the handle section and being flexible to bend on itself in substantially a single plane with respect to the handle section, an end section at that end of the handle section remote from the bristle section, the bristle section having a bore therein aligning with the bore of the handle section, and a wire extending through the aligned bores and having one end thereof secured in the end section and having the other end thereof resilient and normally curved and extending into the bore of the bristle section, a half rotation of the end section with respect to the handle section causing a half rotation of the curved end of the wire within the bore of the bristle section to change the shape of the latter with respect to the handle section by bending in said single plane, said bristle section causing the curved end of the wire to straighten during the first part of the half rotation to set up a stress in said end of the wire, and continued turning of the wire permitting the curved end of the wire to reassume its normally curved form
  • a flexible section having bristles projecting from a surface thereof, said section being bendable on itself more easily in one plane than in any plane oblique to said one normally curved member extending longitudinally of and rotatable relatively to the flexible section and so related to the latter as to change form with respect to curvature when the form of the flexible section changes with respect to curvature; and means to turn the member relatively to the section, turning of the member with respect to the fleidble section straightening the member due to the bending of the flexible section plane to make said surface either concave, flat, -or convex relatively to said bristles, a resilient

Description

Sept. 2, 1941. E. E. GRIFFITH ET AL 2,254,365
CONVERTIBLE TOOTHBRUSH Filed June 6, 1959 Inventors Edward E. Grfifith EH10 M. Story Attorney Patented Sept. 2, 1941 STAT ' UNlTa CONVERTELE TOOTHBBUSE Edward Grimtii, Worcester, and Elliott M. Story, West Boylston, Mass.
Application June 6, 1939, Serial No. 277,594
7 Claims. (Cl. l5-l72) This invention relates to toothbrushes and it is the general object of the invention to provide a toothbrush having a bristle section the contour of which can be altered at the will of the user.
In the ordinary toothbrush the bristles have a fixed contour because of the rigidity of the handle and the parts which carry the bristles. Some toothbrushes are made with a convex tooth engaging portion while others have concave contours. For proper cleaning of the outside of the teeth the bristle section should be concave, whereas the inner surfaces of the teeth are cleaned best with a bristle section which is convex. It is an important object of our present invention to provide a toothbrush the bristle section of which is flexible and provided with means to be manipulated by the user whereby the bristles may be made either convex or concave. In this way a single toothbrush can give the degree of cleaning which heretofore has been possible only with two brushes of different forms.
It is another object of our present inventionto extend through the bristle section of the brush a normally curved member, such as a wire, which is rotatable in the section and is mifiiciently strong to overcome the resistance to bending on the part of the bristle section. We have found it convenient to anchor the rotatable member in some part of the handle so that relative turning of the handle with respect to the bristle section will cause turning of the curved member or wire within the bristle section to change its shape. In practice we have found it convenient to anchor the rotatable member in the end of the handle but we do not wish to be limited to this construction, since the handle as a whole may be made rotatable with respect to the bristle section as will be pointed out hereinafter.
Most toothbrushes at the present time are made with a handle composed of Celluloid or similar material of sufficient thickness to be substantially rigid. In its broader concept our invention includes the provision of a bristle section which shall be flexible enough to respond to the forces exerted by the curved member, but in the practical application of our invention we have found several ways in which the bristle section can be made sufiiciently flexible even though Celluloid or similar material be used as an anchorage for the bristles. In this connection other objects of our invention include structural changes in the usual bristle section which will lessen its rigidity, these changes in one form of the invention involving transverse grooves part way through the usual bristlesection. We are not limited to this meansfor rendering the bristle section flexible, however, and in other instances have cut the bristle section into a number of small bristle carrying units which are connected together by a flexible binder or holder the form of which can be changed by the curved member when the latter is rotated. We realize that various means can be employed to render the bristle section flexible and in the broader aspects of our invention do not wish to be limited necessarily to the specific forms described hereinafter.
With these and other objects in view which will appear as the description proceeds, our invention resides in the combination and arrangement of parts hereinafter described and set forth.
In the accompanying drawing, where three forms of the bristle section and two forms for anchoring the rotatable member are shown,
Fig. 1 is a plan view of the preferred form of our invention,
Fig. 2 is a side elevation of the brush shown in Fig. l with the bristle section concave and an intermediate step of changing the form of the bristle section is indicated in dotted lines,
Fig. 3 is a view similar to Fig. 2 but in which the bristle section is convex,
Fig. 4 is a view of the rotatable unit as it would appear if removed from Fig. 2,
Fig. 5 is an enlarged vertical section on line Fig. 7 is a detailed view of the first modification of the flexible bristle section,
Fig. 8 is a view similar-to Fig. 7 but showing the second modification of the bristle section, and
Fig. 9 is a view similar to Fig. 2 but showing a modification of the rotatable member which alters the contour of the bristle section.
Referring to the preferred form of the invention shown in Figs. 1 to 6, the brush B is shown as having a body it made of Celluloid or similar material and of the usual form. At the end of the body section ll! are a plurality of separate units II which may be made of the same material as the body l0 and except as set forth hereinafter have the same general cross sectional area. As shown in Fig. 2 each unit is provided with bristles i2 which for purposes of illustration are shown to be all of the same 5 length, although this is not an essential feature. CertainJpristles l3 may if desired be carried directly bythe handle II.
In order to connect the units II I provide a hollow binder having parallel spaced sides It which are connected at their ends as indicated in Fig. 1. This binder may be made of thin spring steel material'and is embedded as set forth in Fig. 2 in the outer parts of the individual sections II. The units Ii are rigid but considered collectively provide a series of bristle carrying parts which are rendered flexible by reason of the binder l5.
Extending through the body II is a longitudinal bore which is in alignment with a series of similar bores 2| in the units II. A steel wire 22 shown in Fig. 4 of slightly less diameter thanthe bores 20 and 2! is located within the bores and has the right end thereof as indicated in Fig. 4 normally curved as at 23. This curve is permanent and may have any desired radius of curvature, although we have found that a curve as illustrated in the drawing is quite sat isfactory. The left end of the wire 22 is broadened as at 25 and is embedded in an extension 26 of the handle the cross section of which may be substantially the same asthe body ill. The end 25 of the wire is non-circular and is therefore held against angular motion with respect to the end 28 so that when the latter is turned the wire will turn with it in the bores 20 and 2i. If desired the end 23 may have a rib 23 to fit into a complementarily formed transverse groove 29 in the end of the body It, the purpose of the rib and groove being to maintain the end 23 normally in the position shown for instance in Fig. 3 with respect to the body Ill. We
find that the wire is possessed of a slight resilience which is suflicient to hold the rib in the groove. The right end of the wire as shown in Fig. 1 may preferably fall short of the outer unit 30 of the bristle carrying section. It will also be seen from Fig. 5 that the wire is abovethe plane of the binder ii and is located between bristles.
In using our toothbrush the bristle section may be concave as shown in Fig. 2 in full lines duev to the fact that the end 23 of the wire is curved upwardly. When it is desired to change the contour of the bristle section the end 23 will be given a half turn with respect to the body ll, passing through the dotted line position shown in Fig. 2 and ultimately reaching the position shown in Fig. 3, where the bent end 23 extends downwardly as indicated in dotted lines in Fig. 4 to cause the bristle carrying units to curve in the opposite direction to make the tooth engaging surface of the bristles convex.
As shown in Fig. 7 the bristle section 43 is integral with the handle ll but is weakened by a series of transverse slots 42 which extend part way through the bristle section. The Celluloid or other material of which the brush in this first modification form is shown possesses suflicient resilience so that when weakened as indicated in Fig. '7 it will respond to the changes exerted by the curved end 23 of the wire when the latter is turned.
The second modification shown in Fig. 8 has grooves 45 on one side of the bristle section 43 while other grooves 41 are on the opposite side, the bristle section being integral with the body section 48 as is the case with the first modification. The transverse ,slots 45 and 4! weaken the bristle sec tion suiiiciently so that it can respond to the curved end 23 of the wire in a manner similar to that described in. connection with Fig. 7.
In the forms of the invention already described we contemplate the use of an end 23 for the handle II. In Fig.9, however, we show a body 50 for'thehandle section in the right end of which is embedded a broadened or non-circular end II of a wire 52 which is shorter than that shown in the previously described forms of the invention and has a normal curvature which is similar to the curve 23 in that it extends in a direction away from the axis of the handle. The bristle carrying section 35 may be rendered flexibleeither in the manner illustrated in Figs. 7 or 8 to render it flexible. In Fig. 9 the section I is indicated in dot and dash lines without illustrating any particular method for rendering it flexible. In this form a turning of the handle I3 with respect to the bristle section 55 will change the contour of the tooth engaging surface of the a bristles in a manner similar to that already described. The advantage or the structure shown in Fig. 9 is that the wire is shorter and it is not necessary to provide the handle with a long bore extending entirely therethrough. Y
Returning for a moment to the preferred form shown in Figs. 1 and 3 it will be seen that the left end of the binder I5 is secured to the handle section In, and it is by this connection that the several units are held to the handle by the section provided through the binder ii. In this form of the invention, as well as in those shown in Figs. 7 and 8, we find that the curved and 23 p tends by its shape to hold the handle section or end 26 in position. Any tendency on the part of the wire to move longitudinally to the left in the bore of the handle I. is resisted by the normal curve 23. This relation makes it unnecessary to connect the wire directly to the flexible bristle carrying section of the brush. We find that the curved end 23 has an inherent resilience permitting it to pass through the straight form shown in dotted lines in Fig. 2, but the resistance to bending oflered by the binder I5 is less than that offered by the curved end 23 and thelatter is therefore able to overpower the binder and require the latter to take the form of the curve 23. The net force acting to curve the bristle section is of course the force with which the curved end 23 exerts a force which is directed. transversely of the length of the bristles, but
this force is nullified in the preferred form by the sides of the binder I5 and in the first and second modifications by those portions of the bristle section which are uncut and remain integral with the handle.
From the foregoing it will be seen that we have provided a toothbrush having a flexible bristle carrying section through which extends a mem- KI her having a normal curve and wherein rotation of the member with respect to the bristle section alters the shape of the latter. It will further be seen that there are various ways in which the preferred form, or by weakening the bristle section when the latter is made integral with the handle. It will also be seen that the wire or ,curved member can eitherbe fastened to an end of the handle separate from the latter as for instance in the form of the invention shown in Fig, 1, or the wire may be anchored in the end of the handle adjacent to the bristle section.
Having thus described our invention it will be seen that changes and modifications may be made there by those skilled in the art without departing from the spirit and scope of the invention and we do not wish to be limited to the details herein disclosed, but what we claim is:
1. In a toothbrush, a handle section, a member secured to the section and having a resilient normally curved end projecting from the section, a series of separate bristle carrying units each with a bore to receive the said curved end of the member, and a flexible binder secured to the handle and to each of the units to connect the latter to the handle section, said bristle units and binder forming a bristle section and the binder capable of bending on itself in a plane substantially parallel to the bristles to make said bristle section either concave, flat, or convex with respect to the bristles, relative turning of the sections causing the curved end of the member to turn in the units, the binder preventing lateral bending of the bristle section relatively to the handle section and causing the curved member to straighten as it turns in the units, continued turning of said curved member after becoming,
straight permitting the curved member again to assume its normally curved form to give the bristle section a different shape.
2. In a toothbrush, a handle section, a group of bristle carrying units, said units separate from the handle and from each other, each unit having a bore therein, a flexible connector secured to each of the units and also secured to the handle section, said flexible connector bendable on itself in a plane substantially parallel t the bristles only and resisting lateral bending relatively to the handle section, and a Wire secured to the handle section and having a resilient normally curved part extending loosely through said bores, a half rotation of the sections with respect to each other causing the curved part of the wire to bend on itself in said plane to change the form of the connector and units, the connector in preventing lateral movement of the units causing the resilient curved part of the wire to straighten during the first part of said half rotation and said curved part of the wire returning to normal curved form during the latter part of said half rotation to produce a change in theshape of the connector and group of units relatively to the handle section, the resistance to bending offered by the connector being less than the resistance to bending offered by the curved end of the wire.
3. In a toothbrush, a handle section, a group of bristle carrying units separate from the handle the handle section through a half rotation withv respect to the units causing the curved end of the wire to rotate within said units, the connector in preventing lateral movement of the units causing the resilient curved part of the wire to straighten during the first part of said half rotation and said curved part of the wire returning to normal curved form during the latter part of said half rotation to produce a change in the shape of the connector and group of units relatively to the handle section.
4. In a toothbrush, a handle section, a bristle section integral therewith and provided with a series of bristles, a bore extending through the handle and bristle sections, the bristle section being rendered flexible by a series of transverse grooves therein, said bristle section bendable on itself only in a plane substantially parallel to the bristles because of said transverse grooves and capable of being concave, flat, or convex relatively to the bristles, and a wire secured to the handle section and rotatable said bores and having the resilient normally curved part extending into the bristle section, rotation of the wire in the bore causing the flexible bristle section to straighten the curved part of the wire and thereby cause the bristle section to become flat with respect to the bristles, the wire by continued rotation acting due to its resilience to assume normally curved form and bend the bristle section to a form curved oppositely to that which it had relatively to the bristles at the beginning of the rotation.
5. In a toothbrush, a bristle section carrying bristles, a series of transverse grooves to weaken the resistance of the bristle section to bending and'render the same flexible, said bristle section bendable on itself only in a plane substantially parallel to the bristles because of the direction of said grooves, said bristle section having a bore therein, a wire having a resilient normally curved part extending into the bore of the bristle section and normally bending said bristle'section in a given direction relatively to the bristle, and means to turn the wire a half rotation in the bore to cause a change in the shape of the bristle section to curve the latter in a direction relatively to said bristles in a direction opposite to said given direction, the bristle section by bending only in said plane causing the curved part of the wire to straighten during the rotation and said curved part thereafter resuming normally curved form to cause the aforesaid bending of the bristle section.
6. In a toothbrush, a handle section having a bore therethrough, a bristle section connected to the handle section and being flexible to bend on itself in substantially a single plane with respect to the handle section, an end section at that end of the handle section remote from the bristle section, the bristle section having a bore therein aligning with the bore of the handle section, and a wire extending through the aligned bores and having one end thereof secured in the end section and having the other end thereof resilient and normally curved and extending into the bore of the bristle section, a half rotation of the end section with respect to the handle section causing a half rotation of the curved end of the wire within the bore of the bristle section to change the shape of the latter with respect to the handle section by bending in said single plane, said bristle section causing the curved end of the wire to straighten during the first part of the half rotation to set up a stress in said end of the wire, and continued turning of the wire permitting the curved end of the wire to reassume its normally curved form and thus bend the bristle section.
7. In a toothbrush, a flexible section having bristles projecting from a surface thereof, said section being bendable on itself more easily in one plane than in any plane oblique to said one normally curved member extending longitudinally of and rotatable relatively to the flexible section and so related to the latter as to change form with respect to curvature when the form of the flexible section changes with respect to curvature; and means to turn the member relatively to the section, turning of the member with respect to the fleidble section straightening the member due to the bending of the flexible section plane to make said surface either concave, flat, -or convex relatively to said bristles, a resilient
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Cited By (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2418344A (en) * 1945-01-12 1947-04-01 Abraham A Goldberg Toothbrush
US2429437A (en) * 1945-05-25 1947-10-21 Maurice J Walker Toothbrush
US2438268A (en) * 1946-06-03 1948-03-23 Louis R Bressler Flexible bristle head toothbrush
US2443297A (en) * 1947-02-08 1948-06-15 Louis R Bressler Toothbrush
US2445657A (en) * 1945-05-08 1948-07-20 Paul G Bennett Toothbrush
US2606335A (en) * 1946-03-25 1952-08-12 Frank D Wiesman Flexible pushbroom
US2631320A (en) * 1950-05-12 1953-03-17 Louis R Bressler Toothbrush
US2650383A (en) * 1952-03-07 1953-09-01 Louis R Bressler Toothbrush with a flexible head
US2664582A (en) * 1949-11-21 1954-01-05 Morris H Kammann Flexible handle paintbrush
US2676350A (en) * 1953-03-16 1954-04-27 Stanley Home Products Inc Toothbrush with a flexible head
US2685703A (en) * 1949-04-27 1954-08-10 Edward F Dellenbach Toothbrush
US2730747A (en) * 1952-06-21 1956-01-17 Louis R Bressler Brush having relatively movable bristle carrying sections
DE1045367B (en) * 1956-03-10 1958-12-04 Alfred Lisson Brush with elastic, flexible plastic bristle carrier plate, especially for smoothing adhesive strips during packaging
US3493991A (en) * 1966-09-16 1970-02-10 Giovanni Sassoli De Bianchi S Resilient tooth brush with adjustable pressure point
US3879791A (en) * 1973-12-14 1975-04-29 Stuart Isler Training toothbrush
US4712267A (en) * 1986-12-04 1987-12-15 Cheng Peter S C Convertible toothbrush
US4829621A (en) * 1986-07-09 1989-05-16 Phenegar John S Toothbrush
US5040261A (en) * 1988-03-03 1991-08-20 Blendax Gmbh Gripping slide for a toothbrush handle
US5105499A (en) * 1991-03-01 1992-04-21 The Procter & Gamble Company Toothbrush having handle joined to brush head by non-pinching flexible twin beam structure
WO1992011785A1 (en) * 1990-12-27 1992-07-23 Maybe Holding Co. Adjustable curve mascara brush
US5146645A (en) * 1991-03-01 1992-09-15 The Procter & Gamble Company Toothbrush employing resiliently buckling arch to indicate excessive brushing pressure
WO1992020256A1 (en) * 1991-05-22 1992-11-26 Humphries Victor A Improvements in toothbrushers
WO1993014671A1 (en) * 1992-01-29 1993-08-05 Helmut Piller Brush
DE4339829A1 (en) * 1993-11-23 1994-04-07 Gerard Brozio Toothbrush with handle and bristled head - has connection between handle and head enabling head to be turned and locked in different positions
US5323504A (en) * 1988-11-04 1994-06-28 Mccusker Robert M Deformable toothbrush
US5351358A (en) * 1992-08-27 1994-10-04 Larrimore Babatu Toothbrush
US5465450A (en) * 1990-06-15 1995-11-14 Humphries; Victor A. Toothbrush
US5479951A (en) * 1994-04-04 1996-01-02 Denebeim; Sabrina S. Bendable, extendable hairbrush with removable brush head
US5515569A (en) * 1993-08-10 1996-05-14 Monti-Werkzeuge Gmbh Handbrush especially for cleaning carpets and upholstery
WO1997025900A1 (en) * 1996-01-18 1997-07-24 The Procter & Gamble Company Brush head
WO1997025899A1 (en) * 1996-01-18 1997-07-24 The Procter & Gamble Company A toothbrush with elastomer filled flexible head
US5651158A (en) * 1991-03-27 1997-07-29 Lingner & Fischer Gmbh Toothbrush with resiliently flexible head
US5758383A (en) * 1995-12-29 1998-06-02 Colgate-Palmolive Company Contouring toothbrush head
WO1998027846A1 (en) * 1996-12-24 1998-07-02 The Procter & Gamble Company A grooming implement
US5839148A (en) * 1997-04-17 1998-11-24 The Procter & Gamble Company Toothbrush with both stationary and moving tufts
US5946759A (en) * 1996-01-18 1999-09-07 The Procter & Gamble Company Brush head
US6178582B1 (en) 1992-03-25 2001-01-30 Smithkline Beecham Consumer Healthcare Gmbh Toothbrush comprising a resilient flex region
US6219874B1 (en) * 1994-07-13 2001-04-24 The Procter & Gamble Co. Resiliently flexible bristle bearing head toothbrush
US6230356B1 (en) * 1998-07-24 2001-05-15 Park Hyo-Moon Toothbrush
GB2361175A (en) * 2000-04-10 2001-10-17 Choy Heung Yue Toothbrush
US6314605B1 (en) 1996-08-02 2001-11-13 The Procter & Gamble Company Toothbrush
US6327735B1 (en) 1997-02-24 2001-12-11 Smithkline Beecham Consumer Healthcare, Gmbh Power tip toothbrush with ball joint
US6408476B1 (en) 1996-01-18 2002-06-25 The Procter & Gamble Company Toothbrush with elastomer filled flexible head
US20020152570A1 (en) * 1995-12-29 2002-10-24 Douglas Hohlbein Contouring toothbrush head
US6514445B1 (en) 1996-12-24 2003-02-04 The Procter & Gamble Company Brush making
EP1336352A1 (en) * 2002-02-19 2003-08-20 L'oreal Device for applying a product to keratinous fibres
US20040194238A1 (en) * 2003-01-14 2004-10-07 Letendre Robert P. Toothbrush having multiple selectable brushing surfaces
FR2855727A1 (en) * 2003-06-03 2004-12-10 Moche Aslanov Toothbrush, has segments of mobile terminal part connected to segments of mobile initial part by inextensible and flexible filaments, where segments have two canals placed longitudinally opposite to each other
US20050166344A1 (en) * 2002-09-20 2005-08-04 Colgate-Palmolive Company Oral care implement
US20060200929A1 (en) * 2005-01-28 2006-09-14 S.C. Johnson & Son, Inc. Flexible cleaning tool with replaceable non-woven pad and cleaning fluid reservoir
US20060231120A1 (en) * 2005-04-15 2006-10-19 Knopow Jeremy F Flexible cleaning tool with replaceable non-woven pad
GB2425718A (en) * 2005-05-07 2006-11-08 Maria Angela Farrell Cosmetic applicator
US20070180640A1 (en) * 2005-01-28 2007-08-09 S. C. Johnson & Son, Inc. Flexible Cleaning Tool With Replaceable Non-woven Pad and Cleaning Fluid Reservoir
US20070193530A1 (en) * 2006-02-17 2007-08-23 James Joseph Deroo Pet hair removal device
US20080184511A1 (en) * 2007-02-02 2008-08-07 The Gillette Company Oral hygiene implements having flexible elements, and methods of making the same
US20100088836A1 (en) * 2007-02-14 2010-04-15 Trisa Holding Ag Toothbrush
US7707676B2 (en) 1999-06-14 2010-05-04 The Procter & Gamble Company Toothbrush
US20100319149A1 (en) * 2007-06-26 2010-12-23 Live-Right, Llc Infant toothbrush
US7908699B2 (en) 2001-07-03 2011-03-22 Colgate-Palmolive Company Oral care implement
US20120042478A1 (en) * 2010-08-17 2012-02-23 Kelly Daniel Bridges Adjustable Handle
US8156600B2 (en) 1995-11-09 2012-04-17 The Gillette Company Gum massaging oral brush
US8393042B2 (en) 2002-08-09 2013-03-12 Colgate-Palmolive Company Oral care implement
US8499402B1 (en) * 2009-10-31 2013-08-06 Peter Arsenault Articulating toothbrush
US8561247B2 (en) 2002-08-09 2013-10-22 Colgate-Palmolive Company Oral care implement
US8584299B2 (en) 2003-04-23 2013-11-19 The Procter & Gamble Company Electric toothbrushes
US8671497B2 (en) 2009-01-22 2014-03-18 Mordechai Kirsh Toothbrush
US8800093B2 (en) 2002-08-09 2014-08-12 Colgate-Palmolive Company Oral care implement
US8806695B2 (en) 2002-08-09 2014-08-19 Colgate-Palmolive Company Oral care implement having flexibly supported cleaning elements extending in opposite directions
US8876221B2 (en) 2002-08-09 2014-11-04 Colgate-Palmolive Company Oral care implement
US8887339B2 (en) 2012-08-27 2014-11-18 Moshe BARZEL Toothbrush with movable bristles sets
US8990996B2 (en) 2002-08-09 2015-03-31 Colgate-Palmolive Company Toothbrush
US20150366326A1 (en) * 2014-06-24 2015-12-24 Geka Gmbh Applicator with a slotted tube and notches
US20190014897A1 (en) * 2015-12-28 2019-01-17 Colgate-Palmolive Company Oral Care Implement with Adjustable Cleaning Elements

Cited By (116)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2418344A (en) * 1945-01-12 1947-04-01 Abraham A Goldberg Toothbrush
US2445657A (en) * 1945-05-08 1948-07-20 Paul G Bennett Toothbrush
US2429437A (en) * 1945-05-25 1947-10-21 Maurice J Walker Toothbrush
US2606335A (en) * 1946-03-25 1952-08-12 Frank D Wiesman Flexible pushbroom
US2438268A (en) * 1946-06-03 1948-03-23 Louis R Bressler Flexible bristle head toothbrush
US2443297A (en) * 1947-02-08 1948-06-15 Louis R Bressler Toothbrush
US2685703A (en) * 1949-04-27 1954-08-10 Edward F Dellenbach Toothbrush
US2664582A (en) * 1949-11-21 1954-01-05 Morris H Kammann Flexible handle paintbrush
US2631320A (en) * 1950-05-12 1953-03-17 Louis R Bressler Toothbrush
US2650383A (en) * 1952-03-07 1953-09-01 Louis R Bressler Toothbrush with a flexible head
US2730747A (en) * 1952-06-21 1956-01-17 Louis R Bressler Brush having relatively movable bristle carrying sections
US2676350A (en) * 1953-03-16 1954-04-27 Stanley Home Products Inc Toothbrush with a flexible head
DE1045367B (en) * 1956-03-10 1958-12-04 Alfred Lisson Brush with elastic, flexible plastic bristle carrier plate, especially for smoothing adhesive strips during packaging
US3493991A (en) * 1966-09-16 1970-02-10 Giovanni Sassoli De Bianchi S Resilient tooth brush with adjustable pressure point
US3879791A (en) * 1973-12-14 1975-04-29 Stuart Isler Training toothbrush
US4829621A (en) * 1986-07-09 1989-05-16 Phenegar John S Toothbrush
US4712267A (en) * 1986-12-04 1987-12-15 Cheng Peter S C Convertible toothbrush
US5040261A (en) * 1988-03-03 1991-08-20 Blendax Gmbh Gripping slide for a toothbrush handle
US5323504A (en) * 1988-11-04 1994-06-28 Mccusker Robert M Deformable toothbrush
US5465450A (en) * 1990-06-15 1995-11-14 Humphries; Victor A. Toothbrush
US5137038A (en) * 1990-12-27 1992-08-11 Maybe Holding Co. Adjustable curve mascara brush
WO1992011785A1 (en) * 1990-12-27 1992-07-23 Maybe Holding Co. Adjustable curve mascara brush
US5146645A (en) * 1991-03-01 1992-09-15 The Procter & Gamble Company Toothbrush employing resiliently buckling arch to indicate excessive brushing pressure
US5105499A (en) * 1991-03-01 1992-04-21 The Procter & Gamble Company Toothbrush having handle joined to brush head by non-pinching flexible twin beam structure
USRE38521E1 (en) 1991-03-27 2004-05-25 Lingner & Fischer Gmbh Toothbrush with resiliently flexible head
US5651158A (en) * 1991-03-27 1997-07-29 Lingner & Fischer Gmbh Toothbrush with resiliently flexible head
WO1992020256A1 (en) * 1991-05-22 1992-11-26 Humphries Victor A Improvements in toothbrushers
US5626400A (en) * 1991-05-22 1997-05-06 Humphries; Victor A. Toothbrushes
WO1993014671A1 (en) * 1992-01-29 1993-08-05 Helmut Piller Brush
US6442786B2 (en) 1992-02-06 2002-09-03 Smithkline Beecham Consumer Healthcare Gmbh Toothbrush comprising a resilient flex region
US6675428B2 (en) 1992-03-25 2004-01-13 Smithkline Beecham Consumer Healthcare Gmbh Toothbrush comprising a resilient flex region
US6178582B1 (en) 1992-03-25 2001-01-30 Smithkline Beecham Consumer Healthcare Gmbh Toothbrush comprising a resilient flex region
US5351358A (en) * 1992-08-27 1994-10-04 Larrimore Babatu Toothbrush
US5515569A (en) * 1993-08-10 1996-05-14 Monti-Werkzeuge Gmbh Handbrush especially for cleaning carpets and upholstery
DE4339829A1 (en) * 1993-11-23 1994-04-07 Gerard Brozio Toothbrush with handle and bristled head - has connection between handle and head enabling head to be turned and locked in different positions
US5479951A (en) * 1994-04-04 1996-01-02 Denebeim; Sabrina S. Bendable, extendable hairbrush with removable brush head
US6505373B2 (en) 1994-07-13 2003-01-14 The Procter & Gamble Company Toothbrush
US6219874B1 (en) * 1994-07-13 2001-04-24 The Procter & Gamble Co. Resiliently flexible bristle bearing head toothbrush
US8156600B2 (en) 1995-11-09 2012-04-17 The Gillette Company Gum massaging oral brush
US5758383A (en) * 1995-12-29 1998-06-02 Colgate-Palmolive Company Contouring toothbrush head
US6996870B2 (en) 1995-12-29 2006-02-14 Colgate-Palmolive Company Contouring toothbrush head
US5991958A (en) * 1995-12-29 1999-11-30 Colgate-Pamolive Company Contouring toothbrush head
US8857003B2 (en) 1995-12-29 2014-10-14 Colgate-Palmolive Company Contouring toothbrush head
US6073299A (en) * 1995-12-29 2000-06-13 Colgate-Palmolive Company Contouring toothbrush head
US20020152570A1 (en) * 1995-12-29 2002-10-24 Douglas Hohlbein Contouring toothbrush head
US6442787B2 (en) * 1995-12-29 2002-09-03 Colgate-Palmolive Company Contouring toothbrush head
US6314606B1 (en) 1995-12-29 2001-11-13 Colgate-Palmolive Company Contouring toothbrush head
EP0955833A4 (en) * 1996-01-18 2004-09-08 Procter & Gamble A toothbrush with elastomer filled flexible head
EP1767120A3 (en) * 1996-01-18 2007-07-25 The Procter and Gamble Company A toothbrush
US6408476B1 (en) 1996-01-18 2002-06-25 The Procter & Gamble Company Toothbrush with elastomer filled flexible head
US20040006837A1 (en) * 1996-01-18 2004-01-15 Cann David Victor Toothbrush with elastomer filled flexible head
US5946759A (en) * 1996-01-18 1999-09-07 The Procter & Gamble Company Brush head
US20060130257A1 (en) * 1996-01-18 2006-06-22 Cann David V Toothbrush with elastomer filled flexible head
WO1997025900A1 (en) * 1996-01-18 1997-07-24 The Procter & Gamble Company Brush head
US7962992B2 (en) 1996-01-18 2011-06-21 The Procter & Gamble Company Toothbrush with elastomer filled flexible head
WO1997025899A1 (en) * 1996-01-18 1997-07-24 The Procter & Gamble Company A toothbrush with elastomer filled flexible head
EP0955833A1 (en) * 1996-01-18 1999-11-17 The Procter & Gamble Company A toothbrush with elastomer filled flexible head
US8327492B2 (en) 1996-01-18 2012-12-11 The Procter & Gamble Company Toothbrush with elastomer filled flexible head
EP0955834A4 (en) * 1996-01-18 2004-07-28 Procter & Gamble Brush head
EP1767120A2 (en) * 1996-01-18 2007-03-28 The Procter and Gamble Company A toothbrush
US6314605B1 (en) 1996-08-02 2001-11-13 The Procter & Gamble Company Toothbrush
US6514445B1 (en) 1996-12-24 2003-02-04 The Procter & Gamble Company Brush making
WO1998027846A1 (en) * 1996-12-24 1998-07-02 The Procter & Gamble Company A grooming implement
US6327735B1 (en) 1997-02-24 2001-12-11 Smithkline Beecham Consumer Healthcare, Gmbh Power tip toothbrush with ball joint
US5839148A (en) * 1997-04-17 1998-11-24 The Procter & Gamble Company Toothbrush with both stationary and moving tufts
US6230356B1 (en) * 1998-07-24 2001-05-15 Park Hyo-Moon Toothbrush
US7707676B2 (en) 1999-06-14 2010-05-04 The Procter & Gamble Company Toothbrush
GB2361175B (en) * 2000-04-10 2003-05-21 Choy Heung Yue Toothbrush
US6357073B1 (en) * 2000-04-10 2002-03-19 Choy Heung Yue Toothbrush
GB2361175A (en) * 2000-04-10 2001-10-17 Choy Heung Yue Toothbrush
US8079110B2 (en) 2001-07-03 2011-12-20 Colgate-Palmolive Company Oral care implement
US7908699B2 (en) 2001-07-03 2011-03-22 Colgate-Palmolive Company Oral care implement
EP1336352A1 (en) * 2002-02-19 2003-08-20 L'oreal Device for applying a product to keratinous fibres
FR2836030A1 (en) * 2002-02-19 2003-08-22 Oreal DEVICE FOR APPLYING A PRODUCT TO KERATINIC FIBERS
US7497219B2 (en) * 2002-02-19 2009-03-03 L'ORĂ©AL S.A. Device and method for applying a substance to keratinous fibers
US20030178043A1 (en) * 2002-02-19 2003-09-25 Gueret Jean-Louis H. Device and method for applying a substance to keratinous fibers
US9167888B2 (en) 2002-08-09 2015-10-27 Colgate-Palmolive Company Oral care implement having flexibly supported cleaning elements extending in opposite directions
US8806695B2 (en) 2002-08-09 2014-08-19 Colgate-Palmolive Company Oral care implement having flexibly supported cleaning elements extending in opposite directions
US8990996B2 (en) 2002-08-09 2015-03-31 Colgate-Palmolive Company Toothbrush
US9545148B2 (en) 2002-08-09 2017-01-17 Colgate-Palmolive Company Oral care implement
US8839481B2 (en) 2002-08-09 2014-09-23 Colgate-Palmolive Company Oral care implement
US10512323B2 (en) 2002-08-09 2019-12-24 Colgate-Palmolive Company Oral care implement
US8393042B2 (en) 2002-08-09 2013-03-12 Colgate-Palmolive Company Oral care implement
US8876221B2 (en) 2002-08-09 2014-11-04 Colgate-Palmolive Company Oral care implement
US8800093B2 (en) 2002-08-09 2014-08-12 Colgate-Palmolive Company Oral care implement
US9603441B2 (en) 2002-08-09 2017-03-28 Colgate-Palmolive Company Toothbrush
US8561247B2 (en) 2002-08-09 2013-10-22 Colgate-Palmolive Company Oral care implement
US7721376B2 (en) 2002-09-20 2010-05-25 Colgate-Palmolive Company Oral care implement
US20050166344A1 (en) * 2002-09-20 2005-08-04 Colgate-Palmolive Company Oral care implement
US20040194238A1 (en) * 2003-01-14 2004-10-07 Letendre Robert P. Toothbrush having multiple selectable brushing surfaces
US8955186B2 (en) 2003-04-23 2015-02-17 The Procter & Gamble Company Electric toothbrushes
US8584299B2 (en) 2003-04-23 2013-11-19 The Procter & Gamble Company Electric toothbrushes
FR2855727A1 (en) * 2003-06-03 2004-12-10 Moche Aslanov Toothbrush, has segments of mobile terminal part connected to segments of mobile initial part by inextensible and flexible filaments, where segments have two canals placed longitudinally opposite to each other
US20060200929A1 (en) * 2005-01-28 2006-09-14 S.C. Johnson & Son, Inc. Flexible cleaning tool with replaceable non-woven pad and cleaning fluid reservoir
US20070180640A1 (en) * 2005-01-28 2007-08-09 S. C. Johnson & Son, Inc. Flexible Cleaning Tool With Replaceable Non-woven Pad and Cleaning Fluid Reservoir
US7784141B2 (en) 2005-01-28 2010-08-31 S. C. Johnson & Son, Inc. Flexible cleaning tool with replaceable non-woven pad and cleaning fluid reservoir
US7356869B2 (en) 2005-04-15 2008-04-15 S.C. Johnson & Son, Inc. Flexible cleaning tool with replaceable non-woven pad
US8046865B2 (en) 2005-04-15 2011-11-01 S.C. Johnson & Son, Inc. Cleaning tool with cleaning pad having a non-woven fiber bundle on both sides
US20060231120A1 (en) * 2005-04-15 2006-10-19 Knopow Jeremy F Flexible cleaning tool with replaceable non-woven pad
GB2425718B (en) * 2005-05-07 2007-09-12 Maria Angela Farrell Improved cosmetics applicator
GB2425718A (en) * 2005-05-07 2006-11-08 Maria Angela Farrell Cosmetic applicator
US20070193530A1 (en) * 2006-02-17 2007-08-23 James Joseph Deroo Pet hair removal device
US9504312B2 (en) 2007-02-02 2016-11-29 The Gillette Company Llc Oral hygiene implements having flexible elements, and methods of making the same
US20080184511A1 (en) * 2007-02-02 2008-08-07 The Gillette Company Oral hygiene implements having flexible elements, and methods of making the same
US8578544B2 (en) 2007-02-02 2013-11-12 The Gillette Company Oral hygiene implements having flexible elements, and methods of making the same
US20100088836A1 (en) * 2007-02-14 2010-04-15 Trisa Holding Ag Toothbrush
US11051604B2 (en) * 2007-06-26 2021-07-06 Live-Right, Llc Infant toothbrush
US20100319149A1 (en) * 2007-06-26 2010-12-23 Live-Right, Llc Infant toothbrush
US8671497B2 (en) 2009-01-22 2014-03-18 Mordechai Kirsh Toothbrush
US8499402B1 (en) * 2009-10-31 2013-08-06 Peter Arsenault Articulating toothbrush
US20120042478A1 (en) * 2010-08-17 2012-02-23 Kelly Daniel Bridges Adjustable Handle
US8887339B2 (en) 2012-08-27 2014-11-18 Moshe BARZEL Toothbrush with movable bristles sets
US20150366326A1 (en) * 2014-06-24 2015-12-24 Geka Gmbh Applicator with a slotted tube and notches
US9788637B2 (en) * 2014-06-24 2017-10-17 Geka Gmbh Applicator with a slotted tube and notches
US20190014897A1 (en) * 2015-12-28 2019-01-17 Colgate-Palmolive Company Oral Care Implement with Adjustable Cleaning Elements
US10588398B2 (en) 2015-12-28 2020-03-17 Colgate-Palmolive Company Oral care implement with adjustable cleaning elements

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