US3660957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated swimming pool construction
Assignee: Individual
•
Filing: 1968-12-10
•
Granted: 1972-05-09
•
Expires: 1988-12-10
Abstract
Abstract The apparatus and method for building a prefabricated swimming pool in which a flexible liner is placed within an excavated hole and a rigid shell suspended from a peripheral walk around the excavation is spaced from the outer liner to define a water cavity. In one form the cavity is sealed from water within the rigid shell, and in another form means are provided for circulation of water from the shell to the cavity, ad from the cavity to a pump and filter where it is directed back to the shell.
Inventors
- 👤 Martin M Schankler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:16
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/12; E04H4/1209; E04H4/0012
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
49 words
A method of constructing swimming pools consisting of the steps of forming a peripheral walk; excavating a hole within said peripheral walk; installing a flexible liner and a rigid shell within said excavated hole and peripheral walk; and attaching said flexible liner and rigid shell to said peripheral walk.
Claim 2
Independent Claim
49 words
A method of constructing swimming pools consisting of the steps of forming a peripheral walk; excavating a hole within said peripheral walk; installing a flexible liner and a rigid shell within said excavated hole and peripheral walk; and attaching said flexible liner and rigid shell to said peripheral walk.
Claim 3
Dependent Claim
49 words
The method of claim 1 further characterized in that said flexible liner is first installed in said excavated hole with the outer edges thereof extending onto said peripheral walk and said rigid shell is then installed within said lined excavation to clamp said flexible liner to said peripheral walk.
Claim 4
Dependent Claim
39 words
The method of claim 2 further characterized in that a frame is formed around the periphery of the excavated hole as part of the peripheral walk and said flexible liner and said rigid shell are attached to said frame.
Claim 5
Dependent Claim
24 words
The method of claim 1 further characterized in that said rigid shell is installed in a plurality of sections which are then joined together.
References Cited (Backward Citations)
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US3371455A
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Cited
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Cited
US3478370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |