US2111876A - Tooth brush - Google Patents

Tooth brush Download PDF

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Publication number
US2111876A
US2111876A US129927A US12992737A US2111876A US 2111876 A US2111876 A US 2111876A US 129927 A US129927 A US 129927A US 12992737 A US12992737 A US 12992737A US 2111876 A US2111876 A US 2111876A
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United States
Prior art keywords
brushes
handle
brush
slotted openings
tooth brush
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Expired - Lifetime
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US129927A
Inventor
Swenson Nelson
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Individual
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Individual
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Publication date
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Priority to US129927A priority Critical patent/US2111876A/en
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Publication of US2111876A publication Critical patent/US2111876A/en
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Expired - Lifetime legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B7/00Bristle carriers arranged in the brush body
    • A46B7/06Bristle carriers arranged in the brush body movably during use, i.e. the normal brushing action causing movement

Definitions

  • the present invention relates to tooth brushes and has for its principal object to provide a plurality of relatively movable brush heads mounted on the handle of the brush and means connecting the brush heads with the handle-to impart a vertical movement to the brushes during the horizontal reciprocating movement of the brush handle across the teeth.
  • a further object of the invention is to provide an article of this character of simple and practical construction, efiicient and reliable in performance, relatively inexpensive to manufacture and otherwise well adapted for the purpose for which the same is intended.
  • Figure 1 is a side elevational View of the brush constructed in accordance with the present invention.
  • Figure 2 is a fragmentary top plan view showing the brushes in closed position.
  • Figure 3 is a similar view showing the brushes in open position.
  • the numeral 5 designates a brush handle which includes a head 6 having a pair of slotted openings I therein extending longitudinally of the handle and including an intermediate arcuate portion 8, said arcuate portion of the respective slotted openings being oppositely curved as will be clearly apparent from an inspection of Figures 2 and 3 of the drawing.
  • the end portions of the slotted openings are disposed in parallelism as indicated at 9.
  • a pair of brushes Ill-l0 are provided and include a backing portion ll having headed upstanding pins I2 intermediate their ends and inserted through the slotted openings 1 of the handle head 6, the shank portions of the pins being movable longitudinally in said slotted openings. 5 It will be apparent from the foregoing that during the longitudinal movement of the brush handle the pins [2 will slide along the slotted openings 8 and by reason of the curvature of said slotted openings the brushes will be caused to 10 move relative toeach other. Accordingly, during the horizontal reciprocating movement of the brush across the teeth a vertical movement of the brushes will also be produced at the same time.
  • a brush comprising a handle having a pair of slotted openings adjacent one end thereof, said slotted openings including intermediate oppositely curved portions, a pair of brushes and pins projecting from said brushes and engaged in said slotted openings to produce relative movement of the brushes upon a reciprocating movement of the handle.
  • a brush comprising a handle having a pair of slotted openings extending longitudinally thereof adjacent one end of the handle, each of said slotted openings including an arcuate intermediate portion curved toward each other and parallel end portions, a pair of brushes extending longitudinally with respect to the handle and headed pins projecting from the backs of the brushes and engaged in said slotted openings to produce relative movement between the brushes upon a longitudinal movement of the handle.

Description

-N. sWENsoN 2,111,876 TOOTH BRUSH March 22, 1938.
Filed March 9', 1937 I [nveniof iii 92% ill/67250 Attorneys Patented Mar. 22, 1938 UNITED STATES PATENT OFFICE 2 Claims.
The present invention relates to tooth brushes and has for its principal object to provide a plurality of relatively movable brush heads mounted on the handle of the brush and means connecting the brush heads with the handle-to impart a vertical movement to the brushes during the horizontal reciprocating movement of the brush handle across the teeth.
A further object of the invention is to provide an article of this character of simple and practical construction, efiicient and reliable in performance, relatively inexpensive to manufacture and otherwise well adapted for the purpose for which the same is intended.
Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawing forming parts hereof, wherein like numerals refer to like parts throughout and in which:-
Figure 1 is a side elevational View of the brush constructed in accordance with the present invention.
Figure 2 is a fragmentary top plan view showing the brushes in closed position.
Figure 3 is a similar view showing the brushes in open position.
Referring now to the drawing in detail, wherein for the purpose of illustration I have disclosed a preferred embodiment of the invention, the numeral 5 designates a brush handle which includes a head 6 having a pair of slotted openings I therein extending longitudinally of the handle and including an intermediate arcuate portion 8, said arcuate portion of the respective slotted openings being oppositely curved as will be clearly apparent from an inspection of Figures 2 and 3 of the drawing. The end portions of the slotted openings are disposed in parallelism as indicated at 9.
A pair of brushes Ill-l0 are provided and include a backing portion ll having headed upstanding pins I2 intermediate their ends and inserted through the slotted openings 1 of the handle head 6, the shank portions of the pins being movable longitudinally in said slotted openings. 5 It will be apparent from the foregoing that during the longitudinal movement of the brush handle the pins [2 will slide along the slotted openings 8 and by reason of the curvature of said slotted openings the brushes will be caused to 10 move relative toeach other. Accordingly, during the horizontal reciprocating movement of the brush across the teeth a vertical movement of the brushes will also be produced at the same time.
It is believed the details of construction and operation of the invention will be readily appreciated from the foregoing without further detail explanation thereof.
Having thus described the invention what I claim is:-
1. A brush comprising a handle having a pair of slotted openings adjacent one end thereof, said slotted openings including intermediate oppositely curved portions, a pair of brushes and pins projecting from said brushes and engaged in said slotted openings to produce relative movement of the brushes upon a reciprocating movement of the handle.
2. A brush comprising a handle having a pair of slotted openings extending longitudinally thereof adjacent one end of the handle, each of said slotted openings including an arcuate intermediate portion curved toward each other and parallel end portions, a pair of brushes extending longitudinally with respect to the handle and headed pins projecting from the backs of the brushes and engaged in said slotted openings to produce relative movement between the brushes upon a longitudinal movement of the handle.
NELSON SWENSON.
US129927A 1937-03-09 1937-03-09 Tooth brush Expired - Lifetime US2111876A (en)

Priority Applications (1)

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US129927A US2111876A (en) 1937-03-09 1937-03-09 Tooth brush

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US129927A US2111876A (en) 1937-03-09 1937-03-09 Tooth brush

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US2111876A true US2111876A (en) 1938-03-22

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US129927A Expired - Lifetime US2111876A (en) 1937-03-09 1937-03-09 Tooth brush

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6041468A (en) * 1998-03-12 2000-03-28 Colgate-Palmolive Company Prophy toothbrush
USD645252S1 (en) 2008-08-15 2011-09-20 Mcneil-Ppc, Inc. Toothbrush
USD670504S1 (en) 2009-05-27 2012-11-13 Mcneil-Ppc, Inc. Toothbrush
USD680747S1 (en) 2008-09-30 2013-04-30 Dr. Fresh, Llc Toothbrush feature
US11330895B2 (en) 2020-02-08 2022-05-17 Joseph E Noonan, JR. Dental cleaning apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6041468A (en) * 1998-03-12 2000-03-28 Colgate-Palmolive Company Prophy toothbrush
USD645252S1 (en) 2008-08-15 2011-09-20 Mcneil-Ppc, Inc. Toothbrush
USD657566S1 (en) 2008-08-15 2012-04-17 Mcneil-Ppc, Inc. Toothbrush
USD719356S1 (en) 2008-08-15 2014-12-16 Dr. Fresh, Llc Toothbrush handle
USD720541S1 (en) 2008-08-15 2015-01-06 Dr. Fresh, Llc Toothbrush
USD680747S1 (en) 2008-09-30 2013-04-30 Dr. Fresh, Llc Toothbrush feature
USD710615S1 (en) 2008-09-30 2014-08-12 Dr. Fresh, Llc Toothbrush handle
USD670504S1 (en) 2009-05-27 2012-11-13 Mcneil-Ppc, Inc. Toothbrush
US11330895B2 (en) 2020-02-08 2022-05-17 Joseph E Noonan, JR. Dental cleaning apparatus

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