US3711873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swimming pool cover
Assignee: Individual
•
Filing: 1971-09-02
•
Granted: 1973-01-23
•
Expires: 1991-09-02
Abstract
Abstract The method for and device to cover a swimming pool in which a sheet is disposed over the swimming pool, and a plurality of water filled tubes positioned on the sheet adjacent to the edge of the swimming pool to hold it down, the tubes being filled with water, and loops embracing the water filled tubes to secure the tubes in position on top of the cover.
Inventors
- 👤 F Katzman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:32
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/06; E04H4/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
92 words
A swimming pool cover comprising: a. a sheet, b. the sheet dimensioned larger than the size of a swimming pool, c. a plurality of straps defining loops attached to the sheet, d. the straps attached generally on that portion of the sheet which is larger than the swimming pool, e. a plurality of tubes for containing a liquid, f. a water port in each of the water tubes, g. means to seal the water ports, h. each of the water tubes adapted to be inserted through at least one of the loops.
Claim 2
Dependent Claim
92 words
A swimming pool cover comprising: a. a sheet, b. the sheet dimensioned larger than the size of a swimming pool, c. a plurality of straps defining loops attached to the sheet, d. the straps attached generally on that portion of the sheet which is larger than the swimming pool, e. a plurality of tubes for containing a liquid, f. a water port in each of the water tubes, g. means to seal the water ports, h. each of the water tubes adapted to be inserted through at least one of the loops.
Claim 3
Dependent Claim
25 words
A swimming pool cover comprising: a. the device according to claim 1 and, b. wherein the liquid to be contained in the tubes is water.
Claim 4
Dependent Claim
39 words
A swimming pool cover comprising: a. the device according to claim 1 and, b. the tubes lying on a portion of that portion of the sheet which is larger than the swimming pool when said cover is in place.
Claim 5
Dependent Claim
27 words
A swimming pool cover comprising: a. the device according to claim 1 and, b. the tubes lying adjacent to the sheet when said cover is in place.
Claim 6
Dependent Claim
31 words
A swimming pool cover comprising: a. the device according to claim 1 and, b. the straps are attached to the sheet at points spaced inwardly from the edge of the sheet.
Claim 7
Dependent Claim
29 words
A swimming pool cover comprising: a. the device according to claim 1 and, b. the straps are attached to the sheet at points along the edge of the sheet.
Claim 8
Dependent Claim
46 words
A swimming pool cover comprising: a. the device according to claim 1 and, b. each strap attached to the sheet at two points generally defining a line perpendicular to the edge of the cover, but outside the portion of the sheet that covers the swimming pool.
Claim 9
Dependent Claim
62 words
A swimming pool cover comprising: a. the device according to claim 1, b. wherein the liquid to be contained in the tubes is water, c. the tubes lying on a portion of that portion of the sheet which is larger than the swimming pool, and, d. the tubes collectively defining generally at least a portion of the outline of the swimming pool.
Claim 10
Dependent Claim
34 words
A swimming pool cover comprising: a. the device according to claim 8 and, b. the weight of the tubes when filled with water being sufficient to hold the sheet tautly over the swimming pool.
Claim 11
Dependent Claim
23 words
A swimming pool cover comprising: a. the device according to claim 1 and, b. the sheet being made of material impenetrable to fluids.
References Cited (Backward Citations)
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Cited
US3077610A
Cited
US3353309A
Cited
US3509585A
Cited
US3523308A
Cited
US3533110A
Cited
US3667070A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |