US3755981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swimming pool stairs
Assignee: Cascade Industries Inc
•
Filing: 1972-01-24
•
Granted: 1973-09-04
•
Expires: 1992-01-24
Abstract
Abstract A swimming pool having side walls is provided with a liner formed of sheet material extending over the inner surface of the side walls. The pool has a step structure set into an opening in the side wall of the pool and has marginal portions thereof secured to the side wall of the pool. The liner of the pool has edge portions overlapping the marginal portions of the step structure and means are provided for establishing a water-tight seal between the liner and step structure.
Inventors
- 👤 R West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:43
CPC Classifications
E; E04; E04F; E04F11/00; E04F11/02; E04H; E04H4/00; E04H4/14; E04H4/144; E04F2011/0203; E04F2011/0205; E04F2011/0218
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
157 words
A swimming pool having a side wall with an opening therein for receiving a step structure, a liner formed of sheet material located on the inner surface of said side wall and having edge portions thereof located adjacent said opening in the side wall of the pool, a step structure located in said opening, said step structure having marginal portions thereof bearing against the inner surface of the side wall of the pool adjacent the opening therein, said marginal portions of the step structure being in the form of flanges overlapping and bearing against the inner surface of the side wall of the pool about the sides and lower edge of said opening, said edge portions of the liner overlapping the outer edges of said flanges and secured to said flanges by means establishing a water tight seal between the overlapping edge portions of the liner and the flanges on the marginal portions of said step structure.
Claim 2
Dependent Claim
157 words
A swimming pool having a side wall with an opening therein for receiving a step structure, a liner formed of sheet material located on the inner surface of said side wall and having edge portions thereof located adjacent said opening in the side wall of the pool, a step structure located in said opening, said step structure having marginal portions thereof bearing against the inner surface of the side wall of the pool adjacent the opening therein, said marginal portions of the step structure being in the form of flanges overlapping and bearing against the inner surface of the side wall of the pool about the sides and lower edge of said opening, said edge portions of the liner overlapping the outer edges of said flanges and secured to said flanges by means establishing a water tight seal between the overlapping edge portions of the liner and the flanges on the marginal portions of said step structure.
Claim 3
Dependent Claim
52 words
A swimming pool as defined in claim 1 wherein said marginal portions of the step structure are formed with channels therein into which said edge portions of the liner extend, and means are located in said channel for establishing a water-tight seal between the liner and marginal portions of the step structure.
Claim 4
Dependent Claim
57 words
A swimming pool as defined in claim 1 wherein the inwardly facing surfaces of said flanges have channels therein into which the overlapping edges of the liner extend and retaining means are located in said channel over the overlapping edges of the liner to secure the liner to the step structure and establish a water-tight seal therewith.
Claim 5
Dependent Claim
21 words
A swimming pool as defined in claim 3 wherein cushioning means are located in said channels between said flanges and liner.
Claim 6
Dependent Claim
18 words
A swimming pool as defined in claim 3 wherein said retaining means is a strip of extruded material.
Claim 7
Dependent Claim
33 words
A swimming pool as defined in claim 5 wherein bolts pass through said strip, liner and flange into engagement with the side wall of the pool to secure the step structure in place.
Claim 8
Dependent Claim
28 words
A swimming pool as defined in claim 3 wherein said retaining means is a strip of extruded plastic material and has a metal reinforcing member extending longitudinally thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |