CA2275370A1 - Liquid containment and dispensing device - Google Patents
Liquid containment and dispensing device Download PDFInfo
- Publication number
- CA2275370A1 CA2275370A1 CA002275370A CA2275370A CA2275370A1 CA 2275370 A1 CA2275370 A1 CA 2275370A1 CA 002275370 A CA002275370 A CA 002275370A CA 2275370 A CA2275370 A CA 2275370A CA 2275370 A1 CA2275370 A1 CA 2275370A1
- Authority
- CA
- Canada
- Prior art keywords
- diaphragm
- dispensing device
- liquid containment
- chassis
- edge portion
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17559—Cartridge manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17513—Inner structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17596—Ink pumps, ink valves
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ink Jet (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Reciprocating Pumps (AREA)
- Closures For Containers (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
Abstract
A diaphragm 24 for attaching to a free edge of a perimetrical wall 18 of a pumping chamber 16 of a chassis 12 of a liquid containment and dispensing device 10, said diaphragm being preshaped to have a raised central portion 24a surrounded by a planar edge portion 24b. The raised central portion of the diaphragm permits the diaphragm, when secured to a free edge of the perimetrical wall, to flex with respect to the pumping chamber without leading to the formation of wrinkles in the planar edge portion. The diaphragm has an innermost layer 24c of LDPE, and the planar edge portion thereof is secured by heatstaking to the free edge of the perimetrical wall of the chassis, which is formed by molding from a plastic material. An aluminum crimp ring 26 is provided to tightly retain the planar edge portion of the diaphragm against the free edge of the perimetrical wall of the chassis.
Description
17044 (0500) LIQUID CONTAINMENT AND DISPENSING DEVICE
BACKGROUND OF THE INVENTION
1. FIELD OF THE INVENTION
This invention relates to a liquid containment and dispensing device.
More particularly, this invention relates to a liquid containment and dispensing device with a self contained pump. The device of this invention is useful for containing and dispensing printing ink in an ink jet printer.
BACKGROUND OF THE INVENTION
1. FIELD OF THE INVENTION
This invention relates to a liquid containment and dispensing device.
More particularly, this invention relates to a liquid containment and dispensing device with a self contained pump. The device of this invention is useful for containing and dispensing printing ink in an ink jet printer.
2. DESCRIPTION OF THE PRIOR ART
Pending U.S. Patent Application Serial No. 08/429,987, now U.S. Patent 5,784,087 the disclosure of which is incorporated herein by reference, and published European Application EP 0 741 038 A2, which claims priority based on the aeforesaid U.S. Patent Application, describe a liquid containment and dispensing device with a self contained pump that was developed for use in containing and dispensing printing ink in an ink jet printer. The pump of the aforesaid device includes a linearly acting pumping member that reciprocates within a pumping chamber, which is defined by a perimetrical wall, and the pumping chamber is covered by a thin, flexible diaphragm, which is fabricated from a laminate of thin films. The diaphragm is then heat-staked to a free edge of the perimetrical wall that surrounds the pumping chamber.
The use of a flexible diaphragm fabricated from a laminate of films requires great care in its heat staking to the perimetrical wall of a pumping chamber, however, due to the tendency of such a diaphragm to form wrinkles around its outside as 17044 (0500) sufficient material is left in the central portion of the diaphragm to permit it to flex sufficiently to accommodate the pumping motion of the pumping member. Further, the use of heat-staking to secure the diaphragm to the perimetrical wall also requires great care in the control of the temperatures used in the heat-staking operation, as excessively high temperatures can degrade the thin films used in the diaphragm, while excessively low temperatures can result in a poor quality seal between the diaphragm and the perimetrical wall.
SUMMARY OF THE INVENTION
According to the present invention, there is provided a liquid containment and dispensing device, especially a liquid containment and dispensing device that is useful in containing and dispensing printing ink in an ink jet printer, with a pumping chamber cover that does not tend to wrinkle around its outside, where it is joined to a free edge of a perimetrical wall of the pumping chamber. Further, the invention as described above incorporates a crimped metallic ring to help secure the pumping chamber cover to the free edge of the perimetrical wall of the pumping chamber to augment the seal that is formed therebetween by heat-staking.
The elimination of wrinkles in the pumping chamber cover according to the present invention is obtained by pre-shaping a sheetlike cover material by a thermoforming operation, to thereby provide a domed configuration to a central portion of the cover that results in sufficient flexibility to accommodate the reciprocation of a pumping element without requiring excessive material in the surrounding portion of the cover. In the preferred embodiment of the present invention, the cover is formed from a 17044 (0500) sheetlike material that is a thin laminate of two or more polymeric films, with a suitable adhesive between adjacent layers of such laminate to prevent delamination of the layers thereof. At least one of the films is a material with good resistance to oxygen and moisture vapor transmission, such as ethylene vinyl alcohol copolymer (EVOH), which is preferably used in the interior of the laminate, with an innermost layer of a low density polyethylene (LDPE), which has good flexibility and bonds well to the perimetrical wall of the pumping chamber when the wall and the liquid containment and dispensing device chassis of which it is a part is formed from polyethylene by injection molding. The outermost layer of the pumping chamber cover is then formed from a high heat resistant polymer such as nylon (a polyamide material) for good resistance to abrasion and to prevent the film structure from sticking to the heat staking die.
Accordingly, it is an object of the present invention to provide an improved liquid containment and dispensing device of a type that has a self contained pump. More particularly, it is an object of the present invention to provide a liquid containment and dispensing device as described above that has utility in containing and dispensing printing ink in an ink jet printer.
It is also an object of the present invention to provide an improved pumping chamber cover for use in a liquid containment and dispensing device of the type described above.
For a further understanding of the present invention and the objects thereof, attention is directed to the drawing and the following brief description thereof, to 17044(0500) the detailed description of the preferred embodiment of the invention and to the appended claims.
BRIEF DESCRIPTION OF THE DRAWING
Fig. 1 is an exploded, perspective view of a liquid containment and dispensing device according to the preferred embodiment of the present invention;
Fig. 2 is sectional view, at an enlarged scale, taken on line 2-2 of Fig. ;
and Fig. 3 is a fragmentary view, at a further enlarged scale, of the element illustrated in Fig. 2.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
A liquid containment and dispensing device according to the preferred embodiment of the present invention is indicated generally by reference numeral 10 in Fig. 1. The liquid containment and dispensing device 10 is made up of a hard protective shell 12 that is closed at an end 12a, which will be the upper end when the device 10 is installed, for example, in an ink jet printer. A molded plastic chassis 14 is installed in an opposed, open end 12b of the shell 12, and the chassis 14 has a pumping chamber 16 defined and surrounded by a perimetrical wall 18, which is formed integrally with the chassis 14.
A pumping element 20, shown fragmentarily, is positioned within the pumping chamber 16 and is reciprocable therein, a coil spring 22 being provided to bias the pumping element 20 away from the closed end 12a of the shell 12. The pumping chamber 16 is closed by a cover or diaphragm 24, whose outer portion is heat-staked to a 17044 (0500) free edge of the perimetrical wall 18 that surrounds the pumping chamber 16.
The diaphragm 24 is then further secured to the perimetrical wall 18 by an aluminum crimp ring 26 to further ensure that the seal between the diaphragm 24 and the perimetrical wall 18 remains secure throughout the life of the ink containment and dispensing device 10.
Ink or other liquid is dispensed from the liquid containment and dispensing device 10 by deflecting the central part of the diaphragm 24 to deflect the pumping element 20 within the pumping chamber 16, against the force of the coil spring 20, to thereby pump the liquid from a flexible pouch (not shown), which is secured to the underside (in the illustrated arrangement) of the chassis 14 through a fluid outlet portion 28 of the chassis 14. As thus far described, the liquid containment and dispensing device functions in the manner described in the aforesaid Serial No. 08/429,987 (EP 0 038 A2), except that the device of such reference does not disclose the use of a crimp ring corresponding to the crimp ring 26 of the device 10 of Fig. 1.
The device 10 of Fig. 1 differs further from the device of the aforesaid reference in that the diaphragm 24 is preshaped, for example, by a thermoforming operation, to provide it with a domed central portion 24a and a planar surrounding edge portion 24b, which is the portion that is heat-staked to the perimetrical wall 18 on the chassis 14. The diaphragm 24, thus, has sufficient excess material in its central portion 24a without requiring excess material in its surrounding edge portion 24b to be able to flex as required during the pumping of ink or other liquid from the device 10, as described above. Such excess material can lead to wrinkling in an otherwise planar diaphragm, which can complicate the problem in properly heat-staking a diaphragm to 17044 (0500) the free edge of a perimetrical wall of a liquid containment and dispensing device of the type described. Such wrinkling can also cause premature failure of the diaphragm material as a result of the flexing cycle.
As is shown in Fig. 2 and even more clearly in Fig. 3, the diaphragm 24 is formed from a lamination of layers of polymeric materials of various compositions. The layers include an innermost layer 24c of any member of the polyethylene material family, such as LDPE, LLDPE, HDPE, metallocene PE, ethylene vinyl acetate and ethylene ethyl acrylate or blends thereof, preferably with a density in the range of 0.880g./cc.-0.964g./cc. Any such material has good strength and flexibility and heat-stakes well to the perimetrical wall of the chassis 14 when the chassis 14 is formed of polyethylene.
The diaphragm 24 also includes an intermediate layer 24d of a material with good resistance to gas and moisture vapor transmission, such as nylon and nylon co-polymers, PVDC and EVOH, which is the preferred material. The diaphragm 24 also includes an outermost layer 24e of a polymer selected for high melt temperature, abrasion resistance and flex life, such as nylon and nylon co-polymers and polypropylene. Since the material of the layers 24c, 24d, 24e, as described, do not bond well to one another, preferably layers 24f, 24g of an adhesive are provided between adjacent layers of the diaphragm 24 to prevent the layers 24c, 24d, 24e from delaminating in service.
The diaphragm 24, as described, is preferably produced by co-extrusion because adhesives used in co-extrusion are usually higher in molecular weight than those used in laminated composites, such higher molecular weight adhesives being less susceptible to being dissolved by aggressive printing inks.
Pending U.S. Patent Application Serial No. 08/429,987, now U.S. Patent 5,784,087 the disclosure of which is incorporated herein by reference, and published European Application EP 0 741 038 A2, which claims priority based on the aeforesaid U.S. Patent Application, describe a liquid containment and dispensing device with a self contained pump that was developed for use in containing and dispensing printing ink in an ink jet printer. The pump of the aforesaid device includes a linearly acting pumping member that reciprocates within a pumping chamber, which is defined by a perimetrical wall, and the pumping chamber is covered by a thin, flexible diaphragm, which is fabricated from a laminate of thin films. The diaphragm is then heat-staked to a free edge of the perimetrical wall that surrounds the pumping chamber.
The use of a flexible diaphragm fabricated from a laminate of films requires great care in its heat staking to the perimetrical wall of a pumping chamber, however, due to the tendency of such a diaphragm to form wrinkles around its outside as 17044 (0500) sufficient material is left in the central portion of the diaphragm to permit it to flex sufficiently to accommodate the pumping motion of the pumping member. Further, the use of heat-staking to secure the diaphragm to the perimetrical wall also requires great care in the control of the temperatures used in the heat-staking operation, as excessively high temperatures can degrade the thin films used in the diaphragm, while excessively low temperatures can result in a poor quality seal between the diaphragm and the perimetrical wall.
SUMMARY OF THE INVENTION
According to the present invention, there is provided a liquid containment and dispensing device, especially a liquid containment and dispensing device that is useful in containing and dispensing printing ink in an ink jet printer, with a pumping chamber cover that does not tend to wrinkle around its outside, where it is joined to a free edge of a perimetrical wall of the pumping chamber. Further, the invention as described above incorporates a crimped metallic ring to help secure the pumping chamber cover to the free edge of the perimetrical wall of the pumping chamber to augment the seal that is formed therebetween by heat-staking.
The elimination of wrinkles in the pumping chamber cover according to the present invention is obtained by pre-shaping a sheetlike cover material by a thermoforming operation, to thereby provide a domed configuration to a central portion of the cover that results in sufficient flexibility to accommodate the reciprocation of a pumping element without requiring excessive material in the surrounding portion of the cover. In the preferred embodiment of the present invention, the cover is formed from a 17044 (0500) sheetlike material that is a thin laminate of two or more polymeric films, with a suitable adhesive between adjacent layers of such laminate to prevent delamination of the layers thereof. At least one of the films is a material with good resistance to oxygen and moisture vapor transmission, such as ethylene vinyl alcohol copolymer (EVOH), which is preferably used in the interior of the laminate, with an innermost layer of a low density polyethylene (LDPE), which has good flexibility and bonds well to the perimetrical wall of the pumping chamber when the wall and the liquid containment and dispensing device chassis of which it is a part is formed from polyethylene by injection molding. The outermost layer of the pumping chamber cover is then formed from a high heat resistant polymer such as nylon (a polyamide material) for good resistance to abrasion and to prevent the film structure from sticking to the heat staking die.
Accordingly, it is an object of the present invention to provide an improved liquid containment and dispensing device of a type that has a self contained pump. More particularly, it is an object of the present invention to provide a liquid containment and dispensing device as described above that has utility in containing and dispensing printing ink in an ink jet printer.
It is also an object of the present invention to provide an improved pumping chamber cover for use in a liquid containment and dispensing device of the type described above.
For a further understanding of the present invention and the objects thereof, attention is directed to the drawing and the following brief description thereof, to 17044(0500) the detailed description of the preferred embodiment of the invention and to the appended claims.
BRIEF DESCRIPTION OF THE DRAWING
Fig. 1 is an exploded, perspective view of a liquid containment and dispensing device according to the preferred embodiment of the present invention;
Fig. 2 is sectional view, at an enlarged scale, taken on line 2-2 of Fig. ;
and Fig. 3 is a fragmentary view, at a further enlarged scale, of the element illustrated in Fig. 2.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
A liquid containment and dispensing device according to the preferred embodiment of the present invention is indicated generally by reference numeral 10 in Fig. 1. The liquid containment and dispensing device 10 is made up of a hard protective shell 12 that is closed at an end 12a, which will be the upper end when the device 10 is installed, for example, in an ink jet printer. A molded plastic chassis 14 is installed in an opposed, open end 12b of the shell 12, and the chassis 14 has a pumping chamber 16 defined and surrounded by a perimetrical wall 18, which is formed integrally with the chassis 14.
A pumping element 20, shown fragmentarily, is positioned within the pumping chamber 16 and is reciprocable therein, a coil spring 22 being provided to bias the pumping element 20 away from the closed end 12a of the shell 12. The pumping chamber 16 is closed by a cover or diaphragm 24, whose outer portion is heat-staked to a 17044 (0500) free edge of the perimetrical wall 18 that surrounds the pumping chamber 16.
The diaphragm 24 is then further secured to the perimetrical wall 18 by an aluminum crimp ring 26 to further ensure that the seal between the diaphragm 24 and the perimetrical wall 18 remains secure throughout the life of the ink containment and dispensing device 10.
Ink or other liquid is dispensed from the liquid containment and dispensing device 10 by deflecting the central part of the diaphragm 24 to deflect the pumping element 20 within the pumping chamber 16, against the force of the coil spring 20, to thereby pump the liquid from a flexible pouch (not shown), which is secured to the underside (in the illustrated arrangement) of the chassis 14 through a fluid outlet portion 28 of the chassis 14. As thus far described, the liquid containment and dispensing device functions in the manner described in the aforesaid Serial No. 08/429,987 (EP 0 038 A2), except that the device of such reference does not disclose the use of a crimp ring corresponding to the crimp ring 26 of the device 10 of Fig. 1.
The device 10 of Fig. 1 differs further from the device of the aforesaid reference in that the diaphragm 24 is preshaped, for example, by a thermoforming operation, to provide it with a domed central portion 24a and a planar surrounding edge portion 24b, which is the portion that is heat-staked to the perimetrical wall 18 on the chassis 14. The diaphragm 24, thus, has sufficient excess material in its central portion 24a without requiring excess material in its surrounding edge portion 24b to be able to flex as required during the pumping of ink or other liquid from the device 10, as described above. Such excess material can lead to wrinkling in an otherwise planar diaphragm, which can complicate the problem in properly heat-staking a diaphragm to 17044 (0500) the free edge of a perimetrical wall of a liquid containment and dispensing device of the type described. Such wrinkling can also cause premature failure of the diaphragm material as a result of the flexing cycle.
As is shown in Fig. 2 and even more clearly in Fig. 3, the diaphragm 24 is formed from a lamination of layers of polymeric materials of various compositions. The layers include an innermost layer 24c of any member of the polyethylene material family, such as LDPE, LLDPE, HDPE, metallocene PE, ethylene vinyl acetate and ethylene ethyl acrylate or blends thereof, preferably with a density in the range of 0.880g./cc.-0.964g./cc. Any such material has good strength and flexibility and heat-stakes well to the perimetrical wall of the chassis 14 when the chassis 14 is formed of polyethylene.
The diaphragm 24 also includes an intermediate layer 24d of a material with good resistance to gas and moisture vapor transmission, such as nylon and nylon co-polymers, PVDC and EVOH, which is the preferred material. The diaphragm 24 also includes an outermost layer 24e of a polymer selected for high melt temperature, abrasion resistance and flex life, such as nylon and nylon co-polymers and polypropylene. Since the material of the layers 24c, 24d, 24e, as described, do not bond well to one another, preferably layers 24f, 24g of an adhesive are provided between adjacent layers of the diaphragm 24 to prevent the layers 24c, 24d, 24e from delaminating in service.
The diaphragm 24, as described, is preferably produced by co-extrusion because adhesives used in co-extrusion are usually higher in molecular weight than those used in laminated composites, such higher molecular weight adhesives being less susceptible to being dissolved by aggressive printing inks.
17044 (0500) While Figs. 2 and 3 may create the impression that the diaphragm 24 has substantial thickness, in practice, for a diaphragm 24 for a device 10 that is designed to contain 500 ml. of printing ink, a standard size, the diaphragm 10 will have a total thickness of the order of 5 mils (0.005 in.).
Although the best mode contemplated by the inventor for carrying out the present invention as of the filing date hereof has been shown and described herein, it will be apparent to those skilled in the art that suitable modifications, variations and equivalents may be made without departing from the scope of the invention, such scope being limited solely by the terms of the following claims and the legal equivalents thereof.
What is claimed is:
Although the best mode contemplated by the inventor for carrying out the present invention as of the filing date hereof has been shown and described herein, it will be apparent to those skilled in the art that suitable modifications, variations and equivalents may be made without departing from the scope of the invention, such scope being limited solely by the terms of the following claims and the legal equivalents thereof.
What is claimed is:
Claims (10)
1. A liquid containment and dispensing device comprising:
a shell having an open end and an opposed end. A chassis positioned within said open end of said shell, said chassis having a perimetrical wall defining a pumping chamber, said perimetrical wall having a free edge;
a pumping element positioned within said pumping chamber, said pumping element being reciprocable within said pumping chamber;
means for biasing said pumping element away from said opposed end of said shell; and a flexible diaphragm covering said pumping chamber, said flexible diaphragm being preshaped to have a raised central portion and a surrounding planar edge portion, said surrounding edge portion being sealingly joined to said free edge of said perimetrical wall.
a shell having an open end and an opposed end. A chassis positioned within said open end of said shell, said chassis having a perimetrical wall defining a pumping chamber, said perimetrical wall having a free edge;
a pumping element positioned within said pumping chamber, said pumping element being reciprocable within said pumping chamber;
means for biasing said pumping element away from said opposed end of said shell; and a flexible diaphragm covering said pumping chamber, said flexible diaphragm being preshaped to have a raised central portion and a surrounding planar edge portion, said surrounding edge portion being sealingly joined to said free edge of said perimetrical wall.
2. A liquid containment dispensing device according to Claim 1 wherein said chassis is formed from a plastic material by molding, wherein said diaphragm is formed from a sheetlike co-extrusion or laminate comprising an innermost layer of a plastic material that is heatstakable to said chassis, and wherein said surrounding edge portion of said diaphragm is sealingly joined to said free edge of said perimetrical wall by heatstaking without the formation of wrinkles in said surrounding edge portion of said diaphragm.
3. A liquid containment and dispensing device according to Claim 2 wherein said sheetlike laminate further comprises an outermost layer and an intermediate layer, said intermediate layer having good resistance to transmission of oxygen and moisture vapor
4. A liquid containment and dispensing device according to Claim 3 wherein said intermediate layer is selected from the group consisting of nylon, nylon co-polymers, PVDC and EVOH.
5. A liquid containment and dispensing device according to Claim 4 wherein said outermost layer is selected from the group consisting of nylon, nylon co-polymers and polypropylene.
6. A liquid containment and dispensing device according to Claim 3 and further comprising:
a first layer of an adhesive between said innermost layer and said intermediate layer.
a first layer of an adhesive between said innermost layer and said intermediate layer.
7. A liquid containment and dispensing device according to Claim 6 and further comprising:
a second layer of adhesive between said intermediate layer and said outermost layer.
a second layer of adhesive between said intermediate layer and said outermost layer.
8. A liquid containment and dispensing device according to Claim 2 and further comprising:
a thin aluminum crimp ring securely retaining said surrounding edge portion of said diaphragm against said free edge of said perimeterical wall.
a thin aluminum crimp ring securely retaining said surrounding edge portion of said diaphragm against said free edge of said perimeterical wall.
9. A liquid containment and dispensing device according to Claim 2 wherein said plastic material of said chassis consists essentially of polyethylene and wherein said plastic material of said innermost layer of said diaphragm is selected from the group consisting of members of the polyethylene family
10. A liquid containment and dispensing device according to Claim 7 wherein said diaphragm has a total thickness, measured in a direction extending perpendicularly of said planar edge portion, of not substantially greater than 5 mils.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10380398A | 1998-06-24 | 1998-06-24 | |
| US09/103,803 | 1998-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2275370A1 true CA2275370A1 (en) | 1999-12-24 |
Family
ID=22297108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002275370A Abandoned CA2275370A1 (en) | 1998-06-24 | 1999-06-17 | Liquid containment and dispensing device |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0970813A3 (en) |
| JP (1) | JP2000025862A (en) |
| KR (1) | KR20000006333A (en) |
| BR (1) | BR9903277A (en) |
| CA (1) | CA2275370A1 (en) |
| ID (1) | ID23701A (en) |
| SG (1) | SG72962A1 (en) |
| TW (1) | TW415890B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7799337B2 (en) | 1997-07-21 | 2010-09-21 | Levin Bruce H | Method for directed intranasal administration of a composition |
| US8473062B2 (en) | 2008-05-01 | 2013-06-25 | Autonomic Technologies, Inc. | Method and device for the treatment of headache |
| US8412336B2 (en) | 2008-12-29 | 2013-04-02 | Autonomic Technologies, Inc. | Integrated delivery and visualization tool for a neuromodulation system |
| US8494641B2 (en) | 2009-04-22 | 2013-07-23 | Autonomic Technologies, Inc. | Implantable neurostimulator with integral hermetic electronic enclosure, circuit substrate, monolithic feed-through, lead assembly and anchoring mechanism |
| US9320908B2 (en) | 2009-01-15 | 2016-04-26 | Autonomic Technologies, Inc. | Approval per use implanted neurostimulator |
| US11541237B2 (en) | 2013-03-15 | 2023-01-03 | Bhl Patent Holdings Llc | Methods for improving shoulder range of motion and functionality |
| CN103895928A (en) * | 2014-04-14 | 2014-07-02 | 江南大学 | Container used for drying |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5959455A (en) * | 1982-09-29 | 1984-04-05 | Konishiroku Photo Ind Co Ltd | Ink jet recorder |
| JPH03272859A (en) * | 1990-02-01 | 1991-12-04 | Matsushita Electric Ind Co Ltd | Droplet discharge device |
| DE69306295T2 (en) * | 1992-04-24 | 1997-04-03 | Hewlett Packard Co | Regulation of the back pressure in color jet printing |
| US5784087A (en) * | 1995-04-27 | 1998-07-21 | Owens-Illinois Closure Inc. | Liquid containment and dispensing device |
| WO1998022290A1 (en) * | 1996-11-18 | 1998-05-28 | Pbt International Ltd. | An inkjet cartridge refill device |
-
1999
- 1999-06-17 CA CA002275370A patent/CA2275370A1/en not_active Abandoned
- 1999-06-18 SG SG1999002955A patent/SG72962A1/en unknown
- 1999-06-22 JP JP11175527A patent/JP2000025862A/en active Pending
- 1999-06-22 EP EP99111924A patent/EP0970813A3/en not_active Withdrawn
- 1999-06-22 KR KR1019990023394A patent/KR20000006333A/en not_active Application Discontinuation
- 1999-06-23 TW TW088110551A patent/TW415890B/en not_active IP Right Cessation
- 1999-06-23 BR BR9903277-5A patent/BR9903277A/en not_active Application Discontinuation
- 1999-06-24 ID IDP990610D patent/ID23701A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0970813A2 (en) | 2000-01-12 |
| EP0970813A3 (en) | 2001-08-29 |
| SG72962A1 (en) | 2000-05-23 |
| ID23701A (en) | 2000-05-11 |
| TW415890B (en) | 2000-12-21 |
| JP2000025862A (en) | 2000-01-25 |
| KR20000006333A (en) | 2000-01-25 |
| BR9903277A (en) | 2000-04-25 |
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