US3859674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated swimming pools
Assignee: Chicago Swimming Pool Manufacturing Inc
•
Filing: 1972-12-08
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Granted: 1975-01-14
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Expires: 1992-12-08
Abstract
Abstract Fiberglass reinforced plastic swimming pools and prefabricated pool walls are illustrated. In one embodiment, the pools and walls contain liquid conveying conduits which are supported by a conduit supporting material such as a rigid polyurethane foam which is secured to the fiberglass reinforced plastic. Pools and walls with integrally molded roll-over gutters are also illustrated as is a method for forming a liquid tight seal around a metal fitting positioned in a panel of fiberglass reinforced plastic. The latter is accomplished by providing the metal fitting with a plastic adaptor and surrounding the adaptor over a portion of its length with fiberglass reinforced plastic.
Inventors
- 👤 David P Thomson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:35
CPC Classifications
E; E04; E04H; E04H4/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
109 words
A liquid containing pool comprising, in combination, a plurality of prefabricated panels comprised of rigid plastic sheet material internally reinforced with fiberglass, said panels containing an integrally molded roll-over gutter portion along one edge thereof with at least one of said panels containing liquid draining means in the gutter portion thereof. 2. The pool of claim 1 wherein a portion of said panels have a light-weight conduit supporting material secured to one side of the sheet material which is in contact with and supports at least one conduit, the conduit being provided with a fitting which extends through the sheet material and is in liquid tight sealing relationship therewith.
Claim 2
Dependent Claim
51 words
The pool of claim 2 wherein the fitting is metal and the conduit is connected to the metal fitting by means of a plastic adaptor with fiberglass reinforced plastic material in contact with and completely surrounding the plastic adaptor over a portion of its length to form a liquid tight seal.
Claim 3
Dependent Claim
12 words
The pool of claim 3 wherein the plastic adaptor is polyvinyl chloride.
Claim 4
Dependent Claim
36 words
The pool of claim 1 wherein a portion of said panels have a light-weight conduit supporting material secured to one side of the sheet material which is in contact with and supports at least one conduit.
Claim 5
Dependent Claim
29 words
The pool of claim 1 wherein said rigid plastic sheet material also contains a plurality of rigid reinforcing members for reinforcing the panels in the roll-over gutter portion thereof.
Claim 6
Dependent Claim
13 words
The pool of claim 6 wherein the rigid reinforcing members are balsa wood.
Claim 7
Dependent Claim
57 words
The pool of claim 6 wherein a portion of said panels have a light-weight conduit supporting material secured to one side of the sheet material which is in contact with and supports at least one conduit, the conduit being provided with a fitting which extends through the sheet material and is in liquid tight sealing relationship therewith.
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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) | 1978-01-13 | 1978-07-15 | 1979-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-13 | 1982-07-15 | 1983-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-13 | 1986-07-15 | 1987-01-14 | $7700.00 | Window Closed / Lapsed |