CA2229409A1 - Liquid applicator implement - Google Patents
Liquid applicator implement Download PDFInfo
- Publication number
- CA2229409A1 CA2229409A1 CA002229409A CA2229409A CA2229409A1 CA 2229409 A1 CA2229409 A1 CA 2229409A1 CA 002229409 A CA002229409 A CA 002229409A CA 2229409 A CA2229409 A CA 2229409A CA 2229409 A1 CA2229409 A1 CA 2229409A1
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- CA
- Canada
- Prior art keywords
- passage
- wick
- liquid
- implement according
- capillary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K8/00—Pens with writing-points other than nibs or balls
- B43K8/02—Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material
- B43K8/04—Arrangements for feeding ink to writing-points
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K7/00—Ball-point pens
- B43K7/10—Arrangements for feeding ink to the ball points
Abstract
A device for applying liquid on a base using an applicator element, with a container of free-moving liquid (6), a capillary store (16) to hold liquid temporarily when there is a change in ambient air pressure and/or temperature, an applicator element (12) in the form of a writing , drawing or brush tip or impression element, and a capillary air inlet to compensate for the liquid taken out of the container, is characterized in that a channel (20) to convey the liquid partially or entirely bridges the distance between the container with liquid and the applicator element, said channel not being directly connected to the capillary store and having lower capillarity than the store.
Description
LIQUID APPLICATOR Ii~/IPLEi~IENT
The invention concerns an implement for applying a liquid tO a support by means of an ap-5 plicator element according to the preamble of appended claim 1.
Such an implement is known from DE 41 15 682 and will now be described with reference to Figur 11.
10 Provided within a casing 2 is a divider wall 4, above which a supply of freely movable li-quid 6 is accommodated in the casing. Above the liquid 6 is a volume of air 7 which in-creasingly replaces the liquid as it is discharged.
At its lower end the casing 2 has a tapering front portion 8 with a through opening in 15 which is held a wick 10 terr in~ting in a writing tip 12 serving as an applicator element.
Extending laterally beside the wick 10 through the front portion 8 is a vent bore 14. A sto-rage means 16 of capillary material which closely embraces the wick 10 is accommodated in the space between the front portion 8 and the divider wall 4. The wick 10 completely fills an opening 18 provided in the divider wall 4 so that only the wick 10 projects into the 20 liquid 6.
The capillarities of the wick 10 and the storage means 16 are matched to each other in such a way that the capillarity of the storage means 16 is less than that of the wick 10. It will be appreciated that the wick 10 does not involve a uniform degree of capillarity as it 25 has larger and smaller spacings between its fibers or includes statistically distributed pores.
The important consideration is that the mean capillarity of the wick 10 in the region of the opening 18 is greater than the mean capillarity of the storage means 16. That ensures that, when passing the implement over a support which is to be written upon with the writing tip 12, liquid is sucked by capillary action through the wick 10 out of the supply of liquid in the casing 2 on to the support and at the same time air passes into the interior of the casing through the larger pores in the wick 10, within the opening 18, in order to replace the liquid which has been discharged in the writing operation. Because the storage means .~ 16 involves a lower level of capillarity or larger capillaries in comparison with the capilla-ries of the wick 10 which serve for the feed of air to the liquid 6, the storage means 16 which is directly in contact with the wick 10 is not sucked full with liquid so that its volume is available as a buffer volume if liquid is urged out of the supply of liquid into the wick for example due to thermal expansion of the air volume 7. In that way the implement 10 of Figure 11 is extremely leak-proof in spite of a very large supply of liquid.
A particularity of that device is that the liquid to be applied to a support has to flow through the entire wick 10, which naturally gives rise to a high level of flow resistance which limits the amount of ink issuing from the writing tip 12. In practical operation that 15 has the result from time to time that, when writing quickly or when quickly applying liquid, the irnplement does not give a satisfactory writing or application trace or image on the support.
It is an object of the invention to improve a liquid applicator implement as mentioned 2() above as to permit a satisfactory applying of a liquid to a support under widely varying conditions and using considerably different liquids.
A solution of this object is provided with an implement according to appended claim 1.
25 In the implement according to the invention the liquid does not have to cover a long dis-tance through a medium with a high level of capillarity, but is passes through a passage of low capillarity directly to the applicator element which therefore can be of a cor-respondingly short configuration and which no longer has a high level of flow resistance in regard to the liquid to be applied to a support, even with a high degree of capillarity.
Accordingly even large amounts of liquid can be applied to the support in a short time with the implement according to the invention, that is to say it is possible to write quickly, print very fast and so on.
S Appended subclaims are directed toward advantageous embodiments of the inventive im-plement.
The invention will now be described by way of example with reference to the accom-panying diagr~mm~tic drawings in which:
Figure 1 is a view in cross-section through a first embodiment of an implement according to the invention, Figure 2 is a detail view on an enlarged scale of the implement shown in Figure 1, Figure 3 is a view in section taken along line III-III in Figure 2, Figures 4 to 8 are cross-sectional views of different embodiments of the implement accor-ding to the invention, Figure 9 is a view in cross-section through an implement similar to Figure 1, the applica-tor element being in the form of a printing element, Figure 10 is a view in cross-section through an implement similar to Figure 2, the applica-25 tor element being in the form of a ball point tip, and Figure 11 is a view in cross-section through the known implement already described above.
Referring to Figure 1, a writing implement to be operated by hand comprises a casing 2 with a divider wall 4. Above the divider wall 4 there is a supply of freely movable liquid 6, for example writing ink, above which there is in turn an air volume 7.
5 Within casing 2 above divider wall 4 there is space for accommodating a large volume of liquid 6 (10 ml or more).
At the bottom the casing 2 termin~t~s in a front portion 8 in which a wick 10 is held, the wick 10 terrnin~ting in an applicator or writing tip 12. Extending laterally beside the wick 10 through the front portion 8 is at least one vent bore 14 or a vent passage. The wick 10 extends through a storage means 16 of capillary material which is disposed in the casing 2 below the divider wall 4, into an opening 18 which is provided in the divider wall 4, and which it completely fills. The storage means 16 embraces the wick 10 in such a way that it is at least in part in direct contact with the wick 10. As in the Figure 11 irnplement the capillarities of the storage means 16 and the wick 10 are matched to each other in such a way that the mean capillarity of the storage means 16 is less than that of the wick 10, while the larger capillaries of the wick 10, within the opening 18, serve for the intro-duction of air into the supply of liquid 6 in order to replace by air the liquid discharged by the writing tip 12. There is a considerable degree of freedom of choice for the material of the wick 10. It may comprise for example acrylonitrile polymer, polyester or nylon fibers, or a capillary component which is produced in a mould. The storage means 16 may comprise fibrous, foam or plate-like material with capillary gaps therebetween.
In contrast to the state of the art the wick 10 is formed in its interior with a blind passage 20 which extends axially directly from the liquid 6 to the writing tip 12. The dimensioning of the passage 20 is such that its capillarity is markedly less than that of the storage means 16 so that liquid passes through the passage 20 directly from the liquid supply 6 to the writing tip 12.
It is advantageous if the capillarity of the passage 20, when using normal writing inks, is less than that of a circular capillary of a diameter of 0,1 rnm, preferably smaller than that of a capillary of a diameter of 0,5 mm. It is further advantageous if at the end of the pas-sage 20 which is towards the writing tip 12 the wick 10 has capillaries whose capillarity S is larger than that of the capillary air inlet which is disposed for example within the wick 10 in the region of the opening 18 and/or between the wick 10 and the inside wall of the opening 18 or at any location of the wick 10 between the divider wall 4 and the writing tip 12. In the latter case the air passes transversely through the wick 10 directly into the pas-sage 20. That ensures that, when liquid issues from the writing tip 12 when the implement 10 is used for writing on a support, air bubbles are sucked in through the opening 18 into the volume of the liquid 6.
The embodiment illustrated in Figure 1 in which the passage 20 is completely enclosed by the capillary material of the wick 10 ensures a reliable feed of liquid to the passage 20 on 15 the one hand while on the other hand the storage means 16 which with its material of low capillarity is in direct contact with the wick 10 can reliably come into operation.
In the described embodiment of Figure 1 the blind passage 20 is produced by a procedure whereby a per se known wick is received in a device having an internal bore whose 20 diameter corresponds to that of the wick and a bar corresponding to the passage 20 to be formed is driven into the wick, in which case the wick advantageously comprises thermoplastic material and is heated to a temperature of for example 80~C during the operation of driving the bar into the wick.
25 Figure 2 is a view on an enlarged scale of the embodiment of Figure 1, turned through 90~ and with a modified configuration for the opening 18. In this embodiment, as can be seen in particular from Figure 3, the opening 18 is provided with slots 22 affording well-defined capillaries which serve for the feed of air into the liquid space 6 above the divider wall 4 in Figure 1 or to the right of the divider wall 4 in Figure 2. When only the larger pores of the wick 10 are used to provide for the feed of air, the capillarity may be somewhat too large, that is to say the flow of ink may be too slight, for some situations of use. In contrast the slots 22 can ensure an accurately defined capillarity which is lower than that of the wick 10 but greater than that of the storage means 16.
s The embodiment shown in Figure 4 does not have a passage formed by a blind passage 20 within the wick 10, as in the embodiment of Figure 1, but by two blind passages 24 and 26 defined within tube portions which are of U-shape in cross-section and which,extending along the wick 10, lead from the divider wall 4 into the portion 8 and feed 10 liquid directly to the lower region of the wick 10. Otherwise the embodiment of Figure 4 corresponds in terms of its function to the embodiment shown in Figure 1, the passages 24, 26 only extending outside the wick 10 but directly adjoining same.
As is immediately apparent from Figures 1 and 4, the passages 20 in Figure 1 and 24 and 15 26 in Figure 4 are of considerable axial length which in normal writing implements is in the range that is at least greater than 0,5 cm whereby it is possible to circumvent the flow resistant of the wick 10 or the total flow re.~i~t~nre for the liquid to be applied can be considerably reduced.
20 The embodiment of Figure 5 differs from that of Figure 1 insofar as the wick is of a two-part nature, narnely in the form of a hollow wick 11 leading to an applicator or writing tip 13. The two parts 11 and 13 are advantageously sealingly enclosed at their junction by the front portion 8 so that the liquid reliably passes directly into the writing tip 13 through the passage 20. In the illustrated embodiment the vent bore 14 is disposed at a location in the 25 front portion 8, remote from the writing tip 13. It will be appreciated that venting or air intake may occur at any suitable location, for example also through larger capillaries of the writing tip 13, directly into the passage 20.
The embodiment of Figure 6 does not have a wick which leads directly form the supply of liquid 6 to the writing tip 13. A tube portion 28 of material which is impervious to the liquid leads from the opening 18 into the front portion 8 and there feeds ink directly to the writing tip 13 held in the front portion 8, through a passage 29 formed in the interior of the tube portion 28. At their junction the tube portion 28 and the writing tip 13 are 5 advantageously sealingly enclosed by the front portion 8. Arranged around the tube portion 28 is a hollow wick 32 which directly adjoins the capillary material of the storage means 16 and extends from the opening 18. The capillarities are so matched that that of the writing tip 13 which is in the form of a wick portion in the Figure 6 embodiment is greater than that of the hollow wick 32, at least in the opening 18 which in turn is greater than 10 that of the storage means 16. In that way the part of the hollow wick 32, which is in the opening 18, performs the function of feeding air to the supply of liquid 6 and charging the storage means 16 with a buffer liquid volume in the event of a rise in pressure in the air volume 7, for example upon an increase in temperature.
15 In the embodiment shown in Figure 7 a passage 34 leads directly from the supply of liquid 6 into a central region of the wick 10 which tennin~tes downwardly in the writing tip 12 and which is connected upwardly to the capillary storage means 16 through a further divider wall 36 in the casing 2.
20 The feed of air to the supply of liquid 6 occurs through the vent bore 14 into the space in which the storage means 16 is arranged and from there through the larger pores of the part of the wick 10, which is in an opening 38 in the further divider wall 36, into the passage 34. The relationships between the individual capillarities correspond to those of the embodiment of Figure 1, the opening 38 performing the function of the opening 18 of the 25 embodiment of Figure 1.
The embodiment of the implement shown in Figure 8 corresponds to that of Figure 6, but here the passage 29 in Figure 6 is replaced by a passage 34 in Figure 8 and the hollow wick 32 in Figure 6 is replaced by a wick portion 40. Venting occurs through the capillaries of the part of the wick portion 40, which is in the opening 18, wherein the capillarity of the wick portion 40 must again be less than that of the writing tip 13 but greater than that of the storage means 16 so that under normal conditions the storage means 16 does not suck itself full of ink.
s The embodiment of Figure 9 corresponds to that of Figure 5 but here the hollow wick 11 terminates directly in a printing element 42 serving as the applicator element. While the embodiments of Figures 1 to 8 are intended for a mode of operation in which the liquid is applied to the support by mechanical contact and relative movement between the writing 10 tip 12 and the support, the implement of Figure 9 operates in such a way that the printing element 42 is connected to an electrical actuating device (not shown) for spraying quantities of liquid on to a support in a deliberate and targeted manner.
The embodiment of the implement shown in Figure 10 corresponds to that shown in Figure 15 5, with the exception that fitted into the front portion 8 is a per se known ball point tip 44 which is applied with writing liquid directly from the writing tip 13 of the embodiment shown in Figure S, which is in the form of a wick portion.
In all embodiments of the implement according to the invention as shown in Figures 1 to 20 10 it is possible to use the most widely varying applicator elements such as felt pen tips, ~me painting and drawing tips, brush tips, printing elements, ball point tips, other writing tips and the like.
Instead of the wicks of wick portions it is also possible to use individual capillary passages 25 or ducts whose capillarity corresponds to the mean capillarity of the wick replaced thereby.
such capillary passages or ducts extend in functional terms parallel to the wick or transversely through the wick which they replace, depending on the function which they perform. For example in the embodiment of Figure 5 the hollow wick 11 can be replaced by a passage or duct which performs the fimction of the passage 20. One or more capillary . CA 02229409 1998-02-12 passages or ducts which connect the passage 20 to the storage means 16 can lead trans-versely through the wall of the passage or duct which replaces the hollow wick 11.
It will be appreciated that the above-described embodiments of the invention have been set 5 forth solely by way of example and that various modifications may be made therein without thereby departing from the scope of the invention.
The invention concerns an implement for applying a liquid tO a support by means of an ap-5 plicator element according to the preamble of appended claim 1.
Such an implement is known from DE 41 15 682 and will now be described with reference to Figur 11.
10 Provided within a casing 2 is a divider wall 4, above which a supply of freely movable li-quid 6 is accommodated in the casing. Above the liquid 6 is a volume of air 7 which in-creasingly replaces the liquid as it is discharged.
At its lower end the casing 2 has a tapering front portion 8 with a through opening in 15 which is held a wick 10 terr in~ting in a writing tip 12 serving as an applicator element.
Extending laterally beside the wick 10 through the front portion 8 is a vent bore 14. A sto-rage means 16 of capillary material which closely embraces the wick 10 is accommodated in the space between the front portion 8 and the divider wall 4. The wick 10 completely fills an opening 18 provided in the divider wall 4 so that only the wick 10 projects into the 20 liquid 6.
The capillarities of the wick 10 and the storage means 16 are matched to each other in such a way that the capillarity of the storage means 16 is less than that of the wick 10. It will be appreciated that the wick 10 does not involve a uniform degree of capillarity as it 25 has larger and smaller spacings between its fibers or includes statistically distributed pores.
The important consideration is that the mean capillarity of the wick 10 in the region of the opening 18 is greater than the mean capillarity of the storage means 16. That ensures that, when passing the implement over a support which is to be written upon with the writing tip 12, liquid is sucked by capillary action through the wick 10 out of the supply of liquid in the casing 2 on to the support and at the same time air passes into the interior of the casing through the larger pores in the wick 10, within the opening 18, in order to replace the liquid which has been discharged in the writing operation. Because the storage means .~ 16 involves a lower level of capillarity or larger capillaries in comparison with the capilla-ries of the wick 10 which serve for the feed of air to the liquid 6, the storage means 16 which is directly in contact with the wick 10 is not sucked full with liquid so that its volume is available as a buffer volume if liquid is urged out of the supply of liquid into the wick for example due to thermal expansion of the air volume 7. In that way the implement 10 of Figure 11 is extremely leak-proof in spite of a very large supply of liquid.
A particularity of that device is that the liquid to be applied to a support has to flow through the entire wick 10, which naturally gives rise to a high level of flow resistance which limits the amount of ink issuing from the writing tip 12. In practical operation that 15 has the result from time to time that, when writing quickly or when quickly applying liquid, the irnplement does not give a satisfactory writing or application trace or image on the support.
It is an object of the invention to improve a liquid applicator implement as mentioned 2() above as to permit a satisfactory applying of a liquid to a support under widely varying conditions and using considerably different liquids.
A solution of this object is provided with an implement according to appended claim 1.
25 In the implement according to the invention the liquid does not have to cover a long dis-tance through a medium with a high level of capillarity, but is passes through a passage of low capillarity directly to the applicator element which therefore can be of a cor-respondingly short configuration and which no longer has a high level of flow resistance in regard to the liquid to be applied to a support, even with a high degree of capillarity.
Accordingly even large amounts of liquid can be applied to the support in a short time with the implement according to the invention, that is to say it is possible to write quickly, print very fast and so on.
S Appended subclaims are directed toward advantageous embodiments of the inventive im-plement.
The invention will now be described by way of example with reference to the accom-panying diagr~mm~tic drawings in which:
Figure 1 is a view in cross-section through a first embodiment of an implement according to the invention, Figure 2 is a detail view on an enlarged scale of the implement shown in Figure 1, Figure 3 is a view in section taken along line III-III in Figure 2, Figures 4 to 8 are cross-sectional views of different embodiments of the implement accor-ding to the invention, Figure 9 is a view in cross-section through an implement similar to Figure 1, the applica-tor element being in the form of a printing element, Figure 10 is a view in cross-section through an implement similar to Figure 2, the applica-25 tor element being in the form of a ball point tip, and Figure 11 is a view in cross-section through the known implement already described above.
Referring to Figure 1, a writing implement to be operated by hand comprises a casing 2 with a divider wall 4. Above the divider wall 4 there is a supply of freely movable liquid 6, for example writing ink, above which there is in turn an air volume 7.
5 Within casing 2 above divider wall 4 there is space for accommodating a large volume of liquid 6 (10 ml or more).
At the bottom the casing 2 termin~t~s in a front portion 8 in which a wick 10 is held, the wick 10 terrnin~ting in an applicator or writing tip 12. Extending laterally beside the wick 10 through the front portion 8 is at least one vent bore 14 or a vent passage. The wick 10 extends through a storage means 16 of capillary material which is disposed in the casing 2 below the divider wall 4, into an opening 18 which is provided in the divider wall 4, and which it completely fills. The storage means 16 embraces the wick 10 in such a way that it is at least in part in direct contact with the wick 10. As in the Figure 11 irnplement the capillarities of the storage means 16 and the wick 10 are matched to each other in such a way that the mean capillarity of the storage means 16 is less than that of the wick 10, while the larger capillaries of the wick 10, within the opening 18, serve for the intro-duction of air into the supply of liquid 6 in order to replace by air the liquid discharged by the writing tip 12. There is a considerable degree of freedom of choice for the material of the wick 10. It may comprise for example acrylonitrile polymer, polyester or nylon fibers, or a capillary component which is produced in a mould. The storage means 16 may comprise fibrous, foam or plate-like material with capillary gaps therebetween.
In contrast to the state of the art the wick 10 is formed in its interior with a blind passage 20 which extends axially directly from the liquid 6 to the writing tip 12. The dimensioning of the passage 20 is such that its capillarity is markedly less than that of the storage means 16 so that liquid passes through the passage 20 directly from the liquid supply 6 to the writing tip 12.
It is advantageous if the capillarity of the passage 20, when using normal writing inks, is less than that of a circular capillary of a diameter of 0,1 rnm, preferably smaller than that of a capillary of a diameter of 0,5 mm. It is further advantageous if at the end of the pas-sage 20 which is towards the writing tip 12 the wick 10 has capillaries whose capillarity S is larger than that of the capillary air inlet which is disposed for example within the wick 10 in the region of the opening 18 and/or between the wick 10 and the inside wall of the opening 18 or at any location of the wick 10 between the divider wall 4 and the writing tip 12. In the latter case the air passes transversely through the wick 10 directly into the pas-sage 20. That ensures that, when liquid issues from the writing tip 12 when the implement 10 is used for writing on a support, air bubbles are sucked in through the opening 18 into the volume of the liquid 6.
The embodiment illustrated in Figure 1 in which the passage 20 is completely enclosed by the capillary material of the wick 10 ensures a reliable feed of liquid to the passage 20 on 15 the one hand while on the other hand the storage means 16 which with its material of low capillarity is in direct contact with the wick 10 can reliably come into operation.
In the described embodiment of Figure 1 the blind passage 20 is produced by a procedure whereby a per se known wick is received in a device having an internal bore whose 20 diameter corresponds to that of the wick and a bar corresponding to the passage 20 to be formed is driven into the wick, in which case the wick advantageously comprises thermoplastic material and is heated to a temperature of for example 80~C during the operation of driving the bar into the wick.
25 Figure 2 is a view on an enlarged scale of the embodiment of Figure 1, turned through 90~ and with a modified configuration for the opening 18. In this embodiment, as can be seen in particular from Figure 3, the opening 18 is provided with slots 22 affording well-defined capillaries which serve for the feed of air into the liquid space 6 above the divider wall 4 in Figure 1 or to the right of the divider wall 4 in Figure 2. When only the larger pores of the wick 10 are used to provide for the feed of air, the capillarity may be somewhat too large, that is to say the flow of ink may be too slight, for some situations of use. In contrast the slots 22 can ensure an accurately defined capillarity which is lower than that of the wick 10 but greater than that of the storage means 16.
s The embodiment shown in Figure 4 does not have a passage formed by a blind passage 20 within the wick 10, as in the embodiment of Figure 1, but by two blind passages 24 and 26 defined within tube portions which are of U-shape in cross-section and which,extending along the wick 10, lead from the divider wall 4 into the portion 8 and feed 10 liquid directly to the lower region of the wick 10. Otherwise the embodiment of Figure 4 corresponds in terms of its function to the embodiment shown in Figure 1, the passages 24, 26 only extending outside the wick 10 but directly adjoining same.
As is immediately apparent from Figures 1 and 4, the passages 20 in Figure 1 and 24 and 15 26 in Figure 4 are of considerable axial length which in normal writing implements is in the range that is at least greater than 0,5 cm whereby it is possible to circumvent the flow resistant of the wick 10 or the total flow re.~i~t~nre for the liquid to be applied can be considerably reduced.
20 The embodiment of Figure 5 differs from that of Figure 1 insofar as the wick is of a two-part nature, narnely in the form of a hollow wick 11 leading to an applicator or writing tip 13. The two parts 11 and 13 are advantageously sealingly enclosed at their junction by the front portion 8 so that the liquid reliably passes directly into the writing tip 13 through the passage 20. In the illustrated embodiment the vent bore 14 is disposed at a location in the 25 front portion 8, remote from the writing tip 13. It will be appreciated that venting or air intake may occur at any suitable location, for example also through larger capillaries of the writing tip 13, directly into the passage 20.
The embodiment of Figure 6 does not have a wick which leads directly form the supply of liquid 6 to the writing tip 13. A tube portion 28 of material which is impervious to the liquid leads from the opening 18 into the front portion 8 and there feeds ink directly to the writing tip 13 held in the front portion 8, through a passage 29 formed in the interior of the tube portion 28. At their junction the tube portion 28 and the writing tip 13 are 5 advantageously sealingly enclosed by the front portion 8. Arranged around the tube portion 28 is a hollow wick 32 which directly adjoins the capillary material of the storage means 16 and extends from the opening 18. The capillarities are so matched that that of the writing tip 13 which is in the form of a wick portion in the Figure 6 embodiment is greater than that of the hollow wick 32, at least in the opening 18 which in turn is greater than 10 that of the storage means 16. In that way the part of the hollow wick 32, which is in the opening 18, performs the function of feeding air to the supply of liquid 6 and charging the storage means 16 with a buffer liquid volume in the event of a rise in pressure in the air volume 7, for example upon an increase in temperature.
15 In the embodiment shown in Figure 7 a passage 34 leads directly from the supply of liquid 6 into a central region of the wick 10 which tennin~tes downwardly in the writing tip 12 and which is connected upwardly to the capillary storage means 16 through a further divider wall 36 in the casing 2.
20 The feed of air to the supply of liquid 6 occurs through the vent bore 14 into the space in which the storage means 16 is arranged and from there through the larger pores of the part of the wick 10, which is in an opening 38 in the further divider wall 36, into the passage 34. The relationships between the individual capillarities correspond to those of the embodiment of Figure 1, the opening 38 performing the function of the opening 18 of the 25 embodiment of Figure 1.
The embodiment of the implement shown in Figure 8 corresponds to that of Figure 6, but here the passage 29 in Figure 6 is replaced by a passage 34 in Figure 8 and the hollow wick 32 in Figure 6 is replaced by a wick portion 40. Venting occurs through the capillaries of the part of the wick portion 40, which is in the opening 18, wherein the capillarity of the wick portion 40 must again be less than that of the writing tip 13 but greater than that of the storage means 16 so that under normal conditions the storage means 16 does not suck itself full of ink.
s The embodiment of Figure 9 corresponds to that of Figure 5 but here the hollow wick 11 terminates directly in a printing element 42 serving as the applicator element. While the embodiments of Figures 1 to 8 are intended for a mode of operation in which the liquid is applied to the support by mechanical contact and relative movement between the writing 10 tip 12 and the support, the implement of Figure 9 operates in such a way that the printing element 42 is connected to an electrical actuating device (not shown) for spraying quantities of liquid on to a support in a deliberate and targeted manner.
The embodiment of the implement shown in Figure 10 corresponds to that shown in Figure 15 5, with the exception that fitted into the front portion 8 is a per se known ball point tip 44 which is applied with writing liquid directly from the writing tip 13 of the embodiment shown in Figure S, which is in the form of a wick portion.
In all embodiments of the implement according to the invention as shown in Figures 1 to 20 10 it is possible to use the most widely varying applicator elements such as felt pen tips, ~me painting and drawing tips, brush tips, printing elements, ball point tips, other writing tips and the like.
Instead of the wicks of wick portions it is also possible to use individual capillary passages 25 or ducts whose capillarity corresponds to the mean capillarity of the wick replaced thereby.
such capillary passages or ducts extend in functional terms parallel to the wick or transversely through the wick which they replace, depending on the function which they perform. For example in the embodiment of Figure 5 the hollow wick 11 can be replaced by a passage or duct which performs the fimction of the passage 20. One or more capillary . CA 02229409 1998-02-12 passages or ducts which connect the passage 20 to the storage means 16 can lead trans-versely through the wall of the passage or duct which replaces the hollow wick 11.
It will be appreciated that the above-described embodiments of the invention have been set 5 forth solely by way of example and that various modifications may be made therein without thereby departing from the scope of the invention.
Claims (20)
1. An implement for applying liquid to a support including:
a container for a freely movable liquid (6), a capillary storage means (16) for temporarily receiving liquid upon a change in air pressure and/or temperature of the environment, an applicator element (12; 13; 42; 44) formed as a writing-, drawing- or brush tip or a print element, a capillary air inlet for compensation of liquid taken from the container, characterized in that a passage (20; 24; 26; 29; 34) for conveying liquid bridges partially or entirely over the distance between the container with liquid (6) and the applicator element (12; 13, 42; 44) which passage is not directly in communication with the storage means (16) and is of a lower capillary than that of the storage means.
a container for a freely movable liquid (6), a capillary storage means (16) for temporarily receiving liquid upon a change in air pressure and/or temperature of the environment, an applicator element (12; 13; 42; 44) formed as a writing-, drawing- or brush tip or a print element, a capillary air inlet for compensation of liquid taken from the container, characterized in that a passage (20; 24; 26; 29; 34) for conveying liquid bridges partially or entirely over the distance between the container with liquid (6) and the applicator element (12; 13, 42; 44) which passage is not directly in communication with the storage means (16) and is of a lower capillary than that of the storage means.
2. An implement according to claim 1, wherein the passage (20; 24; 26; 29; 34) is of a capillarity which on average is less than that of a circular capillary of a diameter of 0,5 mm, preferably 0,1 mm.
3. An implement according to any one of the preceding claims, wherein at the end of the passage (20; 24; 26; 29; 34) that is towards the applicator element (12; 13; 42; 44) there are provided one or more capillaries whose capillarity is greater than that of the capillary air inlet.
4. An implement according to any one of the preceding claims, wherein the passage (20; 24; 26; 29; 34) is connected to the storage means (16) by way of capillaries whose capillarity is on average greater than that of the storage means.
5. An implement according to any one of the preceding claims, wherein the passage (20; 24; 26; 29; 34) is partially or entirely enclosed by a capillary material.
6. An implement according to any one of the preceding claims, wherein the passage (20, 24, 26; 29) leads through the storage means (16) towards the applicator element (12; 13; 42; 44).
7. An implement according to any one of the preceding claims, wherein the passage (20) is formed within a capillary wick (10; 11).
8. An implement according to claim 7, wherein the wick (10) comprises thermoplastic material and the passage (20) is formed by expansion of the wick by means of a bar in the heated condition.
9. An implement according to any one of claims 1 to 6, wherein the passage (24;
26; 29) is partially or entirely enclosed in a tubular configuration by a material which is impervious to the liquid.
26; 29) is partially or entirely enclosed in a tubular configuration by a material which is impervious to the liquid.
10. An implement according to any one of claims 1 to 3, wherein the passage (34) extends to a capillary element (10) communicating with the applicator element (12) and the storage means (16).
11. An implement according to any one of claims 1 to 10, wherein the air inlet is formed by capillary material (10; 40).
12. An implement according to any one of claims 1 to 10, wherein the air inlet is formed by a capillary slot (22).
13. An implement according to any one of claims 1 to 6, wherein the applicator element (12; 13; 44) is in the form of a capillary writing tip (12) at the end of a capillary wick (10; 11; 13) which opens directly into the liquid container, the storage means (16) is directly in contact with the material of the wick at a location remote from liquid in the container, and the passage (10; 24, 26) extends along the wick over a part of the length thereof.
14. An implement according to claim 13, wherein in the region of the passage (10) the wick is in the form of a hollow wick (11) adjoined by the writing tip (13; 42; 13; 44) in the form of a separate component.
15. An implement according to claim 13, wherein the passage (24, 26) is formed by at least one tube portion which leads through the storage means (16) and which is closed towards same but which is open towards the wick (10) at least in the end region of the passage, which is towards the applicator element (12).
16. An implement according to claim 2, wherein the passage (20) is formed by a blind passage provided within the wick (10) and extending from the liquid container.
17. An implement according to any one of claims 1 to 3, wherein the storagemeans (16) is connected to the liquid container (6) by way of its own capillary wick (32;
40) of greater capillarity than that of the storage means.
40) of greater capillarity than that of the storage means.
18. An implement according to claim 17, wherein the passage (29) is formed by a tube portion (28) which extending through the wick (32) of the storage means (16) communicates the applicator element (12) with the liquid container (6).
19. An implement according to any one of the preceding claims, wherein a space in which the capillary storage means (16) is arranged is communicated directly with the ambient atmosphere by way of a vent opening (14).
20. An implement according to any one of the preceding claims, wherein within the container there can be accommodated a relatively large volume of freely movable liquid (6).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19529865.9 | 1995-08-14 | ||
| DE19529865A DE19529865C2 (en) | 1995-08-14 | 1995-08-14 | Device for applying liquids to a base by means of an application element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2229409A1 true CA2229409A1 (en) | 1997-02-27 |
Family
ID=7769446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002229409A Abandoned CA2229409A1 (en) | 1995-08-14 | 1996-08-12 | Liquid applicator implement |
Country Status (8)
| Country | Link |
|---|---|
| US (3) | US6183155B1 (en) |
| JP (1) | JPH11510748A (en) |
| BR (1) | BR9610237A (en) |
| CA (1) | CA2229409A1 (en) |
| DE (1) | DE19529865C2 (en) |
| FR (1) | FR2737862B1 (en) |
| GB (1) | GB2304311B (en) |
| WO (1) | WO1997006962A2 (en) |
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| FR2747611B1 (en) | 1996-04-23 | 1998-07-10 | Conte Sa | BUFFER TANK FOR LIQUID INK WRITING ARTICLE AND WRITING ARTICLE COMPRISING SUCH A TANK |
| DE19706967C1 (en) | 1997-02-21 | 1998-09-03 | Kaufmann R Dataprint | Liquid regulator for supplying a consumer with liquid from a liquid supply |
| US6039486A (en) * | 1997-05-15 | 2000-03-21 | Breslin; Daniel V. | Pen |
| DE19727485A1 (en) | 1997-06-27 | 1999-01-07 | Rainer Dipl Ing Kaufmannn | Device for applying a liquid to a surface |
| CA2246422A1 (en) | 1997-08-29 | 1999-02-28 | The Pilot Ink Co., Ltd. | Direct liquid supply writing implement |
| US5965468A (en) | 1997-10-31 | 1999-10-12 | Kimberly-Clark Worldwide, Inc. | Direct formed, mixed fiber size nonwoven fabrics |
| DE19832046A1 (en) | 1998-07-16 | 2000-02-03 | Dataprint R Kaufmann Gmbh | Device for applying liquids, especially writing utensils |
| FR2782921B1 (en) | 1998-09-09 | 2002-09-20 | Dior Christian Parfums | LIPID EXTRACT OF SKELETONEMA ALGAE, PROCESS OF PREPARATION AND USE IN COSMETIC AND PHARMACEUTICAL AREAS, ESPECIALLY DERMATOLOGICAL |
| WO2000017575A1 (en) | 1998-09-22 | 2000-03-30 | Axair Ag | Steam generator with removable limescale receptacle |
| DE29823054U1 (en) | 1998-12-18 | 1999-06-02 | Sanford Rotring Holding Gmbh | Fountain pen |
| DE29910459U1 (en) | 1999-06-10 | 2000-10-19 | Sanford Rotring Holding Gmbh | Writing instrument |
| DE19930540B4 (en) | 1999-06-28 | 2004-04-22 | Sanford Gmbh | Hand applicator |
-
1995
- 1995-08-14 DE DE19529865A patent/DE19529865C2/en not_active Expired - Lifetime
-
1996
- 1996-08-12 US US09/011,842 patent/US6183155B1/en not_active Expired - Lifetime
- 1996-08-12 WO PCT/DE1996/001530 patent/WO1997006962A2/en active Application Filing
- 1996-08-12 BR BR9610237-3A patent/BR9610237A/en not_active IP Right Cessation
- 1996-08-12 JP JP9508833A patent/JPH11510748A/en active Pending
- 1996-08-12 CA CA002229409A patent/CA2229409A1/en not_active Abandoned
- 1996-08-13 FR FR9610157A patent/FR2737862B1/en not_active Expired - Lifetime
- 1996-08-13 GB GB9616979A patent/GB2304311B/en not_active Expired - Lifetime
-
2000
- 2000-11-16 US US09/714,019 patent/US6413001B1/en not_active Expired - Fee Related
-
2001
- 2001-04-20 US US09/839,390 patent/US6497527B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6322269B1 (en) | 1999-06-28 | 2001-11-27 | Sanford I L.P. | Free ink system |
| US6632041B1 (en) | 1999-06-28 | 2003-10-14 | Sanford L.P. | Free ink system |
| US6695517B2 (en) | 2001-03-26 | 2004-02-24 | Sanford, L.P. | Free ink system |
| US7101104B2 (en) | 2001-03-26 | 2006-09-05 | Sanford, L.P. | Free ink system |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19529865C2 (en) | 2002-02-28 |
| FR2737862A1 (en) | 1997-02-21 |
| GB2304311A (en) | 1997-03-19 |
| FR2737862B1 (en) | 1999-05-07 |
| GB9616979D0 (en) | 1996-09-25 |
| GB2304311B (en) | 1999-05-26 |
| WO1997006962A3 (en) | 1997-03-27 |
| US6413001B1 (en) | 2002-07-02 |
| MX9801223A (en) | 1998-10-31 |
| US6497527B2 (en) | 2002-12-24 |
| JPH11510748A (en) | 1999-09-21 |
| US20010016141A1 (en) | 2001-08-23 |
| DE19529865A1 (en) | 1997-02-20 |
| WO1997006962A2 (en) | 1997-02-27 |
| US6183155B1 (en) | 2001-02-06 |
| BR9610237A (en) | 1999-12-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |