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US3645264A
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US
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Absorbent pad
Assignee: Individual
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Filing: 1970-11-05
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Granted: 1972-02-29
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Expires: 1990-11-05
Abstract
Abstract An absorbent pad comprising a plurality of layers including at least a pneumatic cellular layer, a liquid absorbent layer and a bottom liquid impervious layer, the pneumatic cellular layer comprising a pair of plastic sheets having a plurality of air cells extending between opposed surfaces thereof, portions of the opposed surfaces of the sheets being sealed to each other to form partition walls between adjacent cells and liquid permeable perforations extending through the partition walls, is provided with a fluid or elastomeric coating of a nonirritating silicone composition on the upper surface of the cellular layer to enhance patient comfort and reduce sticking of the patient''s body thereto.
Inventors
- 👤 John P Gallagher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:36
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/01; A61F13/01021; A61F13/15; A61F13/51; A61F13/511; A61F13/51113; A61F13/53; A61F13/534; A61F2013/00089; A61F2013/00157; A61F2013/00246; A61F2013/00251; A61F2013/00361; A61F2013/00365; A61F2013/00519; A61F2013/00544; A61F2013/00604; A61F2013/00727; A61F2013/00731; A61F2013/00855; A61F2013/00859; A61F2013/15008; A61F2013/15024; A61F2013/51186; A61F13/513; A61F2013/51355; A61F2013/51372; A61F13/514; A61F13/51401; A61F2013/51409; A61F13/51474; A61F2013/51486; A61F2013/51492; A61F2013/530802; A61F2013/53445
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
91 words
An absorbent pad comprising a plurality of layers including at least a pneumatic cellular layer, a liquid absorbent layer and a bottom liquid impervious layer, the pneumatic cellular layer comprising a pair of plastic sheets having a plurality of air cells extending between opposed surfaces thereof, portions of the opposed surfaces being sealed to each other to form partition walls between adjacent cells and liquid permeable perforations extending through the partition walls, and a fluid or elastomeric coating of a nonirritating silicone composition on the upper surface of the cellular layer.
Claim 2
Dependent Claim
91 words
An absorbent pad comprising a plurality of layers including at least a pneumatic cellular layer, a liquid absorbent layer and a bottom liquid impervious layer, the pneumatic cellular layer comprising a pair of plastic sheets having a plurality of air cells extending between opposed surfaces thereof, portions of the opposed surfaces being sealed to each other to form partition walls between adjacent cells and liquid permeable perforations extending through the partition walls, and a fluid or elastomeric coating of a nonirritating silicone composition on the upper surface of the cellular layer.
Claim 3
Dependent Claim
16 words
An absorbent pad as claimed in claim 1 wherein the silicone composition is a liquid polydimethylsilicone.
Claim 4
Dependent Claim
16 words
An absorbent pad as claimed in claim 1 wherein the silicone composition is an elastomeric polydimethylsilicone.
References Cited (Backward Citations)
US3548420A
Cited
US3468311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |