US4846822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid impervious barrier member
Assignee: FRANK DONALD J
•
Filing: 1988-05-02
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Granted: 1989-07-11
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Expires: 2008-05-02
Abstract
Abstract A liquid impervious barrier member for use in a variety of medical products is disclosed as including a first outer layer of synthetic thermal plastic fabric material, an intermediate layer of thermal plastic film and a second outer layer of synthetic thermal plastic fabric material, all of the layers being heat and pressure bonded together and then cured to form the liquid impervious barrier member.
Inventors
- 👤 Charles Foxman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:53
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/48; A61F5/485; B; B32; B32B; B32B7/00; B32B7/04; B32B7/12; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/23907; Y10T428/2395; Y10T428/24; Y10T428/24777; Y10T428/24785
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
65 words
A liquid impervious barrier member for use in a variety of medical products, comprising a first outer layer of synthetic thermal plastic fabric material, an intermediate layer of thermal plastic film, and a second outer layer of synthetic thermal plastic fabric material which is also a napped fabric, all of said layers being heat and pressure bonded together to form said liquid impervious barrier member.
Claim 2
Dependent Claim
65 words
A liquid impervious barrier member for use in a variety of medical products, comprising a first outer layer of synthetic thermal plastic fabric material, an intermediate layer of thermal plastic film, and a second outer layer of synthetic thermal plastic fabric material which is also a napped fabric, all of said layers being heat and pressure bonded together to form said liquid impervious barrier member.
Claim 3
Dependent Claim
38 words
The barrier member as defined in claim 1 wherein the first outer layer s made from a knitted or woven synthetic scrim fabric, and said second outer layer is formed from a knitted or woven thermal plastic fabric.
Claim 4
Dependent Claim
42 words
The barrier member as defined in claim 2 wherein the first outer layer of knitted or woven synthetic scrim fabric has much greater spacing in the fabric yarns then those fabric yarns in the second outer layer of woven thermal plastic fabric.
Claim 5
Dependent Claim
29 words
The barrier member as defined in claim 2 wherein said intermediate layer of film is made from a material that will withstand a minimum melt point of 400° F.
Claim 6
Dependent Claim
68 words
A liquid impervious barrier member for use in a variety of medical products, comprising a first outer layer of knitted or woven synthetic scrim fabric material, an intermediate layer of thermal plastic film, and a second outer layer of woven synthetic thermal plastic fabric material, which is also a napped fabric, all of said layers being heat and pressure bonded together to form said liquid impervious barrier member.
Claim 7
Dependent Claim
68 words
A liquid impervious barrier member for use in a variety of medical products, comprising a first outer layer of knitted or woven synthetic scrim fabric material, an intermediate layer of thermal plastic film, and a second outer layer of woven synthetic thermal plastic fabric material, which is also a napped fabric, all of said layers being heat and pressure bonded together to form said liquid impervious barrier member.
Claim 8
Dependent Claim
19 words
The barrier member as defined in claim 5 which is formed as the main component of a medical product.
Claim 9
Dependent Claim
25 words
The barrier member as defined in claim 6 and further including an edge binding member which is also formed from the liquid impervious barrier member.
Claim 10
Dependent Claim
23 words
The barrier member as defined in claim 5 for use in conjunction with a liquid permeable absorptive member to form an incontinent pad.
Claim 11
Dependent Claim
21 words
The barrier member as defined in claim 8 and further including protective pockets also formed from the liquid impervious barrier member.
Claim 12
Dependent Claim
33 words
The barrier member as defined in claim 6 and further including other components attached to the medical product, said other components being made from materials other than said layers comprising said barrier member.
References Cited (Backward Citations)
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Cited
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US4122223A
Cited
US4360554A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-10 | 1993-01-09 | 1993-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-10 | 1997-01-09 | 1997-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-10 | 2001-01-09 | 2001-07-11 | $7700.00 | Window Closed / Lapsed |