US3789442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-weight minimum volume water pad with integral water container securement means
Assignee: Aqua Therm Products Corp
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Filing: 1972-10-26
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Granted: 1974-02-05
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Expires: 1992-10-26
Abstract
Abstract A low liquid volume, low weight liquid or water pad for use as a mattress comprised of a lower cellular foamed material flexible pad, which is hollowed out for receiving a flexible material, liquid filled container. The lower pad has an unhollowed extension portion for a user''s head, upper body, or the like, which the liquid container does not rest on. The liquid container includes edge flaps which are wrapped around edges of the lower foam pad to secure the liquid container in position. Extending across the lower pad, the hollow therein and the liquid container is an upper flexible pad of the same cellular foamed material. The entire aforesaid structure is enclosed within a flexible, water impervious sheath which is loaded with the structure through openings in the ends of the sheath. The end openings are secured closed.
Inventors
- 👤 S Tobinick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:56
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/14; A47C27/15; A47C27/08; A47C27/085; A47C27/148; A47C27/18
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
217 words
A water or other liquid mattress, comprising: a generally flat, sealed liquid container, having upper and lower surfaces, and being comprised of flexible, liquid impervious material; said container being adapted to receive and hold liquid; said container having predetermined length and breadth dimensions; at least one pad of sculpted material; said pad having at least one of its dimensions selected so as to cause at least one section of said one pad to extend beyond at least one edge of said container when said container is positioned adjacent to said one pad; said one pad being sculpted to define a cavity having generally said predetermined length and breadth dimensions; said container being removably fitted in said cavity and one of said container surfaces faces into said cavity; a second pad also having at least one of its dimensions selected so as to form at least one section of said second pad to extend beyond said at least one edge of said container when said second pad is positioned adjacent to said container; said second pad extending across and closing said cavity with said container therein; the said at least one sections of both said pads being oriented to contact each other, thereby to prevent the mattress from having uNevenness to an undesirable extent across the entire mattress.
Claim 2
Dependent Claim
217 words
A water or other liquid mattress, comprising: a generally flat, sealed liquid container, having upper and lower surfaces, and being comprised of flexible, liquid impervious material; said container being adapted to receive and hold liquid; said container having predetermined length and breadth dimensions; at least one pad of sculpted material; said pad having at least one of its dimensions selected so as to cause at least one section of said one pad to extend beyond at least one edge of said container when said container is positioned adjacent to said one pad; said one pad being sculpted to define a cavity having generally said predetermined length and breadth dimensions; said container being removably fitted in said cavity and one of said container surfaces faces into said cavity; a second pad also having at least one of its dimensions selected so as to form at least one section of said second pad to extend beyond said at least one edge of said container when said second pad is positioned adjacent to said container; said second pad extending across and closing said cavity with said container therein; the said at least one sections of both said pads being oriented to contact each other, thereby to prevent the mattress from having uNevenness to an undesirable extent across the entire mattress.
Claim 3
Dependent Claim
57 words
The mattress of claim 1, wherein said container has a plurality of edges; flexible flaps attached to said container extend past a plurality of said container edges and are of sufficient length to be and are wrapped around the ends of and then under one of said pads for holding said container in position in said cavity.
Claim 4
Dependent Claim
58 words
The mattress of claim 2, further comprising an enclosed sheath of a flexible, water impervious material, and enclosing and closely fitting around the assembly of said container and said pads; said sheath having at least one elongated opening at one end thereof to permit loading of said pads and container therein and to permit filling of said container.
Claim 5
Dependent Claim
19 words
The mattress of claim 3, further comprising fastening means on said sheath for fastening shut said sheath elongated opening.
Claim 6
Dependent Claim
70 words
The mattress of claim 1, wherein both of said pads have all dimensions selected such that both said pads extend beyond all peripheral edges of said container; said cavity being formed inward from the edges of said at least one pad; the portions of said at least one pad that extend beyond said edges of said container are in engagement with the correspondingly positioned portions of the other said pad.
Claim 7
Dependent Claim
16 words
The mattress of claim 5 wherein said cavity is formed in only one of said pads.
Claim 8
Dependent Claim
32 words
The mattress of claim 5, wherein the said at least one sections of both said pads has sufficiently large dimensions that they may be folded and shifted away from a horizontal orientation.
Claim 9
Dependent Claim
16 words
The mattress of claim 7, wherein said pads are comprised of flexible, resilient, cellular, foamed material.
Claim 10
Dependent Claim
57 words
The mattress of claim 8, wherein said container has a plurality of edges, flexible flaps attached to said container extend past a plurality of said container edges and are of sufficient length to be and are wrapped around the ends of and then under one of said pads for holding said container in position in said cavity.
Claim 11
Dependent Claim
59 words
The mattress of claim 9, wherein said cavity is formed in only one said pad; that said pad has a thickness of about 4 inches and said cavity has a depth of about 2 inches therein; said container, when filled, has a thickness of about 2 inches; and the other said pad has a thickness of about 1 inch.
Claim 12
Dependent Claim
58 words
The mattress of claim 10, further comprising an enclosed sheath of a flexible, water impervious material, and enclosing and closely fitting around the assembly of said container and said pads; said sheath having at least one elongated opening at one end thereof to permit loading of said pads and container therein and to permit filling of said container.
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) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |