US3720964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated swimming pools
Assignee: Chicago Swimming Pool Manufacturing Inc
•
Filing: 1970-10-19
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Granted: 1973-03-20
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Expires: 1990-10-19
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
- 👤 D Thomson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:05
CPC Classifications
E; E04; E04H; E04H4/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
122 words
A prefabricated pool wall comprising a fiberglass reinforced rigid plastic panel having one side impervious to liquid and having secured to the other side a light-weight conduit supporting material and a conduit in contact with and supported by said conduit supporting material, said conduit being provided with a metal fitting which extends through the liquid impervious side of said fiberglass reinforced rigid plastic panel and is connected to said conDuit by means of a plastic adaptor, said pool wall being further characterized as having 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 and thereby prevent liquid leakage around said metal fitting and through said pool wall.
Claim 2
Dependent Claim
122 words
A prefabricated pool wall comprising a fiberglass reinforced rigid plastic panel having one side impervious to liquid and having secured to the other side a light-weight conduit supporting material and a conduit in contact with and supported by said conduit supporting material, said conduit being provided with a metal fitting which extends through the liquid impervious side of said fiberglass reinforced rigid plastic panel and is connected to said conDuit by means of a plastic adaptor, said pool wall being further characterized as having 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 and thereby prevent liquid leakage around said metal fitting and through said pool wall.
Claim 3
Dependent Claim
15 words
The pool wall of claim 1 wherein the conduit supporting material is rigid polyurethane foam.
Claim 4
Dependent Claim
13 words
The pool wall of claim 1 wherein the plastic adaptor is polyvinyl chloride.
Claim 5
Dependent Claim
16 words
The pool wall of claim 3 wherein the conduit supporting material is a rigid polyurethane foam.
Claim 6
Dependent Claim
20 words
The pool wall of claim 4 containing integrally molded flanged ends for joining the pool wall to other pool walls.
Claim 7
Dependent Claim
12 words
The pool wall of claim 4 wherein the conduit is polyvinyl chloride.
Claim 8
Dependent Claim
20 words
The pool wall of claim 6 wherein the conduit supporting material contains a back covering of fiberglass reinforced plastic material.
Claim 9
Dependent Claim
41 words
The pool wall of claim 1 wherein the fiberglass reinforced rigid plastic panel contains an additional rigid reinforcing member which is encapsulated by the fiberglass reinforced plastic material. 9 The pool wall of claim 8 containing an integrally molded roll-over gutter.
Claim 10
Dependent Claim
15 words
A pool comprised of a plurality of pool walls such as described in claim 1.
Claim 11
Dependent Claim
122 words
A liquid containing pool comprised of an integrally molded fiberglass reinforced rigid plastic sheet material having one side impervious to liquid and having secured to the back sides thereof a light-weight conduit supporting material and a conduit in contact with and supported by said conduit supporting material, said conduit being provided with a metal fitting which extends through the liquid impervious side of said material and is connected to said conduit by means of a plastic adaptor, said pool being further characterized as having 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 and thereby prevent liquid leakage around said metal fitting and through said pool.
Claim 12
Dependent Claim
122 words
A liquid containing pool comprised of an integrally molded fiberglass reinforced rigid plastic sheet material having one side impervious to liquid and having secured to the back sides thereof a light-weight conduit supporting material and a conduit in contact with and supported by said conduit supporting material, said conduit being provided with a metal fitting which extends through the liquid impervious side of said material and is connected to said conduit by means of a plastic adaptor, said pool being further characterized as having 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 and thereby prevent liquid leakage around said metal fitting and through said pool.
Claim 13
Dependent Claim
14 words
The pool of claim 11 wherein the conduit supporting material is rigid polyurethane foam.
Claim 14
Dependent Claim
12 words
The pool of claim 11 wherein the plastic adaptor is polyvinyl chloride.
Claim 15
Dependent Claim
20 words
The pool wall of claim 1 containing integrally molded flanged ends for joining the pool wall to other pool walls.
Claim 16
Dependent Claim
14 words
The pool of claim 13 wherein the conduit supporting material is rigid polyurethane foam.
Claim 17
Dependent Claim
11 words
The pool of claim 15 wherein the conduit is polyvinyl chloride.
Claim 18
Dependent Claim
28 words
The pool of claim 11 wherein the fiberglass reinforced rigid plastic sheet material contains an additional rigid reinforcing member which is encapsulated by the fiberglass reinforced plastic material.
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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) | 1976-03-19 | 1976-09-18 | 1977-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-19 | 1980-09-18 | 1981-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-19 | 1984-09-18 | 1985-03-20 | $7700.00 | Window Closed / Lapsed |