Patent US3653083A successfully refreshed from Google Patents.
US3653083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bed pad
Assignee: Individual
•
Filing: 1970-05-11
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Granted: 1972-04-04
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Expires: 1990-05-11
Abstract
Abstract An aerated bed pad is described which permits varied positions of comfort for the user. The bed pad comprises a sheet of open foam supported by a perforated, branched plastic tube having a single open end into which a current of air is passed. The air passes out through the perforations then through the foam sheet to the body of the user. The air supply is variable and the tube inflatable and deflatable. In one model there are two interlaced, alternating tubes. In another model one tube is interlaced with spaced, non-porous resilient strips.
Inventors
- 👤 Roy Lapidus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:40
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/14; A47C27/20; A47C27/08; A47C27/081; A47C27/088; A47C27/142; A47C27/144; A47C27/18; A61; A61G; A61G7/00; A61G7/05; A61G7/057; A61G7/05769; A61G7/05776
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
160 words
A bed pad comprising: a. A flexible, resilient porous body-supporting sheet resting on b. a flexible base support which supplies a variable current of air to the bottom surface of the sheet so that the air passes through to the outer surface of the sheet and also causes variable flexing motion of portions of said sheet; said sheet comprising ba. an inflatable and deflatable flexible tubular member (41) having perforations on its upper surface, a single open end (47), and a plurality of convolutions or closed branches (43); said branches being arranged so as to interlace beneath said porous sheet with bb. either a second flexible, inflatable and deflatable perforated tubular member (245) or spaced flexible non-porous resilient strips (48); each said tubular member being separately connected to a variable air supply; said pad being characterized in that deflation occurs by the passage of air from said perforated tubular member, most of said air escaping through said porous body-supporting sheet.
Claim 2
Dependent Claim
160 words
A bed pad comprising: a. A flexible, resilient porous body-supporting sheet resting on b. a flexible base support which supplies a variable current of air to the bottom surface of the sheet so that the air passes through to the outer surface of the sheet and also causes variable flexing motion of portions of said sheet; said sheet comprising ba. an inflatable and deflatable flexible tubular member (41) having perforations on its upper surface, a single open end (47), and a plurality of convolutions or closed branches (43); said branches being arranged so as to interlace beneath said porous sheet with bb. either a second flexible, inflatable and deflatable perforated tubular member (245) or spaced flexible non-porous resilient strips (48); each said tubular member being separately connected to a variable air supply; said pad being characterized in that deflation occurs by the passage of air from said perforated tubular member, most of said air escaping through said porous body-supporting sheet.
Claim 3
Dependent Claim
24 words
The bed pad of claim 1 wherein there are two interlaced tubular members (145,245) each connected so that they alternate in inflation and deflation.
Claim 4
Dependent Claim
19 words
The bed pad of claim 1 wherein there is one tubular member (45) interlaced with spaced non-porous strips (48).
Claim 5
Dependent Claim
14 words
The bed pad of claim 1 wherein the convolutions or branches are oriented transversely.
Claim 6
Dependent Claim
20 words
The bed pad of claim 1 wherein the inflation period of said tubular tubular member does not exceed 1 minute.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |