US4734941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flushable urine conducting appliance
Assignee: Individual
•
Filing: 1987-05-13
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Granted: 1988-04-05
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Expires: 2007-05-13
Abstract
Abstract A flushable urine conductive appliance comprising a flexible layered sheet adapted to be folded for positioning between the legs of a female to direct urine to an appropriate receptacle including at least an inner layer formed from a fibrous or non-fibrous sheet adapted for rapid disintegration of structural integrity in contact with water, and intermediate layer formed from at least one continuous film of water-soluble polymer, and an outer layer formed from at least one fibrous or non-fibrous sheet and capable of rapid disintegration of structural integrity when in contact with water.
Inventors
- 👤 Elizabeth M. DeWitt
- 👤 Richard Grime
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:44
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/44; A61F5/451; A61F5/455; A61F5/4556
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
136 words
A flushable urine conductive applicance, comprising a flexible layered sheet made solely from water disintegratable material and adapted to be folded for positioning between the legs of a female to direct urine into an appropriate receptacle, said layered sheet including an inner layer capable of rapid disintegration of its structural integrity during urination, an intermediate layer formed from at least one continuous film of a water-soluble polymer selected from hydroxyethyl cellulose polymers, polyvinyl alcohol, polyethylene oxide polymers, hydrated gels and organic starches, to delay urine penetration for at least 30 seconds, and an outer layer including a strip having a substantial length to width ratio and positioned to have its length extending in the direction of intended fluid flow, said outer layer being capable of rapid disintegration of its structural integrity when in contact with water.
Claim 2
Dependent Claim
136 words
A flushable urine conductive applicance, comprising a flexible layered sheet made solely from water disintegratable material and adapted to be folded for positioning between the legs of a female to direct urine into an appropriate receptacle, said layered sheet including an inner layer capable of rapid disintegration of its structural integrity during urination, an intermediate layer formed from at least one continuous film of a water-soluble polymer selected from hydroxyethyl cellulose polymers, polyvinyl alcohol, polyethylene oxide polymers, hydrated gels and organic starches, to delay urine penetration for at least 30 seconds, and an outer layer including a strip having a substantial length to width ratio and positioned to have its length extending in the direction of intended fluid flow, said outer layer being capable of rapid disintegration of its structural integrity when in contact with water.
Claim 3
Dependent Claim
21 words
The device of claim 1, wherein said fibrous sheet is treated with a watersoluble polymer to provide dry structural integrity thereof.
Claim 4
Dependent Claim
30 words
The device of claim 1, wherein said outer layer includes a second sheet shaped generally to conform to the shape of at least the discharge end of said inner layer.
Claim 5
Dependent Claim
52 words
The device of claim 1, wherein said outer layer has a plurality of open areas to permit rapid fluid access to the inner layer when the device is placed in contact with water so as to increase the rate of disintegration of the structural integrity of the device in contact with water.
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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) | 1991-04-05 | 1991-10-05 | 1992-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-05 | 1995-10-05 | 1996-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-05 | 1999-10-05 | 2000-04-05 | $7700.00 | Window Closed / Lapsed |