Patent US4453935A successfully refreshed from Google Patents.
US4453935A
Expired / Lapsed
US
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Disposable container-applicator with leak-proof cover
Assignee: Chester Labs Inc
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Filing: 1983-12-06
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Granted: 1984-06-12
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Expires: 2003-12-06
Abstract
Abstract A disposable plastic container-applicator usable as a douche having an integrally formed catheter and a container portion with a cover member enclosing the catheter. The cover member is sealed to the catheter both at a constricted portion and at a skirt portion to prevent the escape of fluid from the catheter into the surrounding atmosphere. A groove on the neck of the catheter engages a ridge on the skirt portion to form a seal. The inside diameter of the tip of the cover member is greater than the outside diameter of the catheter so as to form a cavity. To open a slit in the rounded end of the catheter for the passage of fluid, the user pinches the tip to cause the air of the cavity to pass through the slit.
Inventors
- 👤 W. Howard Newton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:19
CPC Classifications
A; A61; A61M; A61M3/00; A61M3/02; A61M3/0233; A61M3/0254; A61M3/0262
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
328 words
A disposable plastic container-applicator comprising: (a) a collapsible container portion filled with a fluid; (b) a flexible elongated tubular catheter having one or more perforations in the end of the catheter, the catheter attached to the container portion for the passage of fluid from the container portion to the catheter and out the perforations when pressure is applied to the container portion by a user; (c) a hollow, completely removable, flexible cover member enclosing the catheter; (d) a neck of the container portion having a groove circumscribing the neck; (e) a ridge extending perpendicular with respect to the length of said catheter and perpendicularly outward from the inside surface of the cover member near the open end of the cover member and the ridge engaging the groove of the neck for sealing the cover member to the neck; (f) a tip of the cover member having an inside surface diameter greater than the outside diameter of the catheter; (g) a constricted portion of the cover member adjacent the tip at which the inside surface of the cover member frictionally engages the catheter; said constricted portion extending length-wise along the catheter a distance of approximately the diameter of the catheter adjacent the constructed portion; (h) an intermediate portion of said cover member between said constricted portion and said ridge of said cover member in which the diameter of said intermediate portion is greater than the outside diameter of the catheter; and (i) the inside surface of the tip of said cover member and the outside diameter of the catheter forming a cavity between the catheter and the cover member, the cavity being sealed from the atmosphere by the constricted portion, the cavity allowing for the opening of the perforation in the catheter by forcing the air of the cavity through the perforation when pressure is applied to the tip by the user, the constricted portion preventing fluid from flowing out of the cavity prior to use of the container-applicator.
Claim 2
Dependent Claim
328 words
A disposable plastic container-applicator comprising: (a) a collapsible container portion filled with a fluid; (b) a flexible elongated tubular catheter having one or more perforations in the end of the catheter, the catheter attached to the container portion for the passage of fluid from the container portion to the catheter and out the perforations when pressure is applied to the container portion by a user; (c) a hollow, completely removable, flexible cover member enclosing the catheter; (d) a neck of the container portion having a groove circumscribing the neck; (e) a ridge extending perpendicular with respect to the length of said catheter and perpendicularly outward from the inside surface of the cover member near the open end of the cover member and the ridge engaging the groove of the neck for sealing the cover member to the neck; (f) a tip of the cover member having an inside surface diameter greater than the outside diameter of the catheter; (g) a constricted portion of the cover member adjacent the tip at which the inside surface of the cover member frictionally engages the catheter; said constricted portion extending length-wise along the catheter a distance of approximately the diameter of the catheter adjacent the constructed portion; (h) an intermediate portion of said cover member between said constricted portion and said ridge of said cover member in which the diameter of said intermediate portion is greater than the outside diameter of the catheter; and (i) the inside surface of the tip of said cover member and the outside diameter of the catheter forming a cavity between the catheter and the cover member, the cavity being sealed from the atmosphere by the constricted portion, the cavity allowing for the opening of the perforation in the catheter by forcing the air of the cavity through the perforation when pressure is applied to the tip by the user, the constricted portion preventing fluid from flowing out of the cavity prior to use of the container-applicator.
Claim 3
Dependent Claim
27 words
A disposable plastic container-applicator as described in claim 1, wherein one or more perforations in the tubular catheter is a slit at the end of the catheter.
Claim 4
Dependent Claim
34 words
A disposable plastic container-applicator as described in claim 1, wherein the cavity formed by the inside surface of the tip of the cover member and the outside diameter of the catheter contains a lubricant.
Claim 5
Dependent Claim
28 words
A disposable plastic container-applicator as described in claim 3, wherein the lubricant seals the slit in the end of the catheter and lubricates the end of the catheter.
Claim 6
Dependent Claim
16 words
A disposable plastic container-applicator as described in claim 3, wherein the lubricant is a petroleum jelly.
Claim 7
Dependent Claim
34 words
A disposable plastic container-applicator as described in claim 1, wherein a taper portion between the tip and the constricted portion of the cover member has a lubricant for sealing the cavity from the atmosphere.
Claim 8
Dependent Claim
22 words
A disposable plastic container-applicator as described in claim 1, wherein the catheter has a smooth, uninterrupted surface terminating in a rounded end.
Claim 9
Dependent Claim
44 words
A disposable plastic container-applicator as described in claim 1, wherein the container portion comprises a flexible, hollow member having an open end for filling purposes, the open end being capable of being fishtailed and sealed after the container portion is filled with a fluid.
Claim 10
Dependent Claim
28 words
A disposable plastic container-applicator as described in claim 1, wherein the inside surface of the constricted portion has a diameter less than the outside diameter of the catheter.
Claim 11
Dependent Claim
42 words
A disposable plastic container-applicator as described in claim 1, wherein the cover member has a thin flexible skirt at the open end of the cover member, the inside diameter of the skirt being slightly less than the outside diameter of the neck.
Claim 12
Dependent Claim
35 words
A disposable plastic container-applicator as described in claim 1, wherein the portion of the cover member between the constricted portion and the skirt has an inside diameter greater than the outside diameter of the catheter.
Claim 13
Dependent Claim
24 words
A disposable plastic container-applicator as described in claim 1, wherein a lubricant is placed on the catheter between the constricted portion and the neck.
Claim 14
Dependent Claim
37 words
A disposable plastic container-applicator as described in claim 1, wherein said cover member includes an expanded end portion, which is greater in diameter than said intermediate portion, and said ridge is located in said expanded end portion.
Claim 15
Dependent Claim
24 words
A disposable plastic container-applicator as described in 13, wherein said expanded end portion is greater in diameter than said tip of said cover member.
Claim 16
Dependent Claim
24 words
A disposable plastic container-applicator as described in 13, wherein said expanded end portion is greater in diameter than said tip of said cover member.
Claim 17
Dependent Claim
29 words
A disposable plastic container-applicator as described in 1, wherein said groove is perpendicular to the length of said catheter and said ridge is perpendicular to said expanded end portion.
Claim 18
Dependent Claim
29 words
A disposable plastic container-applicator as described in 1, wherein said groove is perpendicular to the length of said catheter and said ridge is perpendicular to said expanded end portion.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-12 | 1987-12-12 | 1988-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-12 | 1991-12-12 | 1992-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-12 | 1995-12-12 | 1996-06-12 | $7700.00 | Window Closed / Lapsed |