US3816859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pool covers
Assignee: Individual
•
Filing: 1973-03-08
•
Granted: 1974-06-18
•
Expires: 1993-03-08
Abstract
Abstract A storable pool cover which serves as a pool liner when not in use and which has an inflatable portion that functions as the cover when inflated.
Inventors
- 👤 M Mosehauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:09
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/06; E04H4/10; E04H4/103
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
115 words
A storable cover for a liquid-containing pool having sidewalls and a bottom, said cover comprising a flexible member which fits adjacent and substantially coextensive with said sidewalls and bottom, said member having an inflatable bottom portion which, when filled with a fluid lighter than said liquid, forms a convex cover which floats on and covers substantially entirely the surface of the liquid in said pool, said member having side portions affixed to said sidewalls at a position which allows the bottom portion, when filled with said fluid, to rise to and float on the surface of said liquid and said side portions being provided with openings to allow the free passage of said liquid therethrough.
Claim 2
Dependent Claim
115 words
A storable cover for a liquid-containing pool having sidewalls and a bottom, said cover comprising a flexible member which fits adjacent and substantially coextensive with said sidewalls and bottom, said member having an inflatable bottom portion which, when filled with a fluid lighter than said liquid, forms a convex cover which floats on and covers substantially entirely the surface of the liquid in said pool, said member having side portions affixed to said sidewalls at a position which allows the bottom portion, when filled with said fluid, to rise to and float on the surface of said liquid and said side portions being provided with openings to allow the free passage of said liquid therethrough.
Claim 3
Dependent Claim
12 words
The invention as described in claim 1 wherein said liquid is water.
Claim 4
Dependent Claim
12 words
The invention as described in claim 1 wherein said fluid is air.
Claim 5
Dependent Claim
29 words
The invention as described in claim 1 wherein said side portions are affixed to the periphery of said pool at approximately the surface level of liquid in said pool.
Claim 6
Dependent Claim
17 words
The invention as described in claim 1 wherein said member is formed of a pliable, plastic material.
Claim 7
Dependent Claim
14 words
The invention as described in claim 1 wherein said member is formed of poly(vinylchloride).
Claim 8
Dependent Claim
15 words
The invention as described in claim 1 wherein said bottom portion contains a ballasting material.
Claim 9
Dependent Claim
121 words
A storable cover for a water-containing swimming pool having sidewalls and a bottom, said cover comprising a flexible plastic member which fits adjacent and substantially coextensive with said sidewalls and bottom, said member having an inflatable bottom portion which, when inflated with air, forms a convex cover which floats on and covers substantially entirely the surface of the water in said pool, said member having side portions affixed to said sidewalls at a position which allows the inflated bottom portion to rise to the surface of the water and said side portions being provided with openings to allow the free passage of water therethrough and said bottom portion having an associated ballasting means to prevent floatation of said portion when deflated.
Claim 10
Dependent Claim
121 words
A storable cover for a water-containing swimming pool having sidewalls and a bottom, said cover comprising a flexible plastic member which fits adjacent and substantially coextensive with said sidewalls and bottom, said member having an inflatable bottom portion which, when inflated with air, forms a convex cover which floats on and covers substantially entirely the surface of the water in said pool, said member having side portions affixed to said sidewalls at a position which allows the inflated bottom portion to rise to the surface of the water and said side portions being provided with openings to allow the free passage of water therethrough and said bottom portion having an associated ballasting means to prevent floatation of said portion when deflated.
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |