US4138753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aquatic mat
Assignee: Advanced Sports Corp
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Filing: 1976-11-19
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Granted: 1979-02-13
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Expires: 1996-11-19
Abstract
Abstract A buoyant, flexible, resilient aquatic mat for use on water surfaces adapted to support one or more persons. The mat comprises an elongated slab and a headrest formed of the same material. The material of the mat comprises a unicellular, non-water absorbent, plastic foam having a tough plastic coating over the entire surface. The headrest comprises a transverse void which provides additional buoyancy. Several embodiments of the aquatic mat are described, and in addition, a modification applicable to all the embodiments, wherein the void of the headrest is enclosed at both ends to provide a closed air chamber and alternatively, the closed air chamber can have vent holes communicating therewith through the bottom of the headrest.
Inventors
- 👤 Robert L. Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:40
CPC Classifications
A; A47; A47C; A47C15/00; A47C15/004; A47C15/006; A47C27/00; A47C27/08; A47C27/081; A47C27/14; A47C27/142; A47C27/144; A47C27/146; B; B63; B63B; B63B34/00; B63B34/50; B63B2231/00; B63B2231/40; B63B2231/50
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
109 words
An aquatic floatation mat capable of floating in water and supporting one or more persons, comprising an elongated planar member having top and bottom planar surfaces and a headrest secured to and extending from an end portion of said planar member; said planar member and said headrest formed from closed cell, unicellular, plastic foam slab members, which are flexible, resilient and non-water absorbent, and which have a surface coating of a tough, pliable, plastic material; said headrest slab member having ends thereof secured to an end portion of said planar member, said headrest has a generally rounded shape and includes one open transverse void above said top planar surface.
Claim 2
Dependent Claim
109 words
An aquatic floatation mat capable of floating in water and supporting one or more persons, comprising an elongated planar member having top and bottom planar surfaces and a headrest secured to and extending from an end portion of said planar member; said planar member and said headrest formed from closed cell, unicellular, plastic foam slab members, which are flexible, resilient and non-water absorbent, and which have a surface coating of a tough, pliable, plastic material; said headrest slab member having ends thereof secured to an end portion of said planar member, said headrest has a generally rounded shape and includes one open transverse void above said top planar surface.
Claim 3
Dependent Claim
95 words
The aquatic mat of claim 1 wherein said headrest slab member is curved around an end portion of said planar member, the ends of said headrest are secured to the top and bottom planar surfaces at an intermediate portion near the said end portion of said planar member, and the end edge of said planar member is secured to an inner surface of said surved headrest slab member thereby forming two transverse voids, wherein one void is above said top planar surface and one void is below said bottom planar surface of said planar member.
Claim 4
Dependent Claim
91 words
The aquatic mat of claim 1 wherein said headrest comprises a curved slab member on each said top and bottom planar surface at said end portion of said planar member, one end of each said respective slab member secured to the said end portion of said respective planar surface and the other end of each said respective slab member secured to an intermediate portion of said respective planar surface near said end portion thereby forming two transverse voids, wherein one void is above and one void is below said planar member.
Claim 5
Dependent Claim
67 words
The aquatic mat of claim 1 wherein said headrest comprises one curved slab member on said top planar surface of said planar member, one end of said slab member secured to the end portion of said top planar surface and the other end secured to an intermediate portion of said top planar surface near said end portion thereby forming one transverse void above said top planar surface.
Claim 6
Dependent Claim
34 words
The aquatic mat of claim 4 wherein said headrest comprises end members enclosing said transverse void to form an air chamber, and vent holes disposed through said planar member communicating with said air chamber.
Claim 7
Dependent Claim
66 words
The aquatic mat of claim 1 wherein said headrest comprises one curved slab member on said top planar surface of said planar member, one end of said slab member secured to the end edge of said planar member and the other end secured to an intermediate portion of said top planar surface near said end portion thereby forming one transverse void above said top planar surface.
Claim 8
Dependent Claim
14 words
The aquatic mat of claim 1 wherein said plastic foam is produced from polyvinylchloride.
Claim 9
Dependent Claim
18 words
The aquatic mat of claim 1 wherein said plastic coating material is firmly adherent to said plastic foam.
Claim 10
Dependent Claim
14 words
The aquatic mat of claim 1 wherein said plastic coating is a sprayed coating.
Claim 11
Dependent Claim
14 words
The aquatic mat of claim 1 wherein said plastic coating is a dipped coating.
Claim 12
Dependent Claim
21 words
The aquatic mat of claim 1 wherein said headrest comprises end members enclosing said transverse voids to form an air chamber.
Claim 13
Dependent Claim
36 words
The aquatic mat of claim 11 wherein said headrest has an enclosed transverse void disposed below the bottom planar surface comprising vent holes in the bottom portion of said headrest communicating with said enclosed air chamber.
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) | 1982-02-12 | 1982-08-14 | 1983-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-12 | 1986-08-14 | 1987-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-12 | 1990-08-14 | 1991-02-13 | $7700.00 | Window Closed / Lapsed |