Patent US3811236A successfully refreshed from Google Patents.
US3811236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swimming pool coping
Assignee: Protective Plastics Ltd
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Filing: 1972-09-05
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Granted: 1974-05-21
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Expires: 1992-09-05
Abstract
Abstract A protective coping member for a swimming pool is of composite construction, comprising a rigid moulded body of fibre-reinforced plastic material, having an outer skin defining a wear surface, and a retainer member constituted by an aluminum extrusion having a keyed upper portion which is embedded in the moulded body and a flanged lower portion defining a longitudinally extending channel to retain a swimming pool liner.
Inventors
- 👤 D Fiddes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:51
CPC Classifications
B; B29; B29C; B29C43/00; B29C43/02; B29C43/18; B29C70/00; B29C70/04; B29C70/06; B29C70/08; B29C70/081; B29C70/68; B29C70/86; E; E04; E04H; E04H4/00; E04H4/14; E04H4/141; E04H4/142
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
208 words
A composite protective coping member for a swimming pool, comprising an elongated rigid moulded body of uniform cross sectional shape having longitudinally extending front and rear edges, the body being constituted by a body portion of dispersedfibre reinforced plastic material having an outer skin portion constituted by a layer of matted fibres impregnated with said plastic material and integrally moulded therewith, the skin defining a longitudinally extending, contoured frontal portion of substantial thickness and a horizontal relatively thin flanged portion extending rearwardly therefrom, the contoured frontal portion having a convex upper surface defining a raised kerb, raised relative to said flanged portion, and a retainer member for a swimming pool liner, the retainer member being constituted by a metallic member having a keyed upper portion embedded in and fixedly anchored to said body portion and a flanged lower portion defining a longitudinally extending channel facing said frontal portion and adapted to receive the edge of the liner, said horizontal flanged portion having a horizontal lower surface adapted to lie on a floor structure, the frontal portion having a longitudinally stepped lower surface providing a horizontal lower surface of the flanged portion and a raised surface portion and having a horizontal base flange coplanar with said lower surface portion.
Claim 2
Dependent Claim
208 words
A composite protective coping member for a swimming pool, comprising an elongated rigid moulded body of uniform cross sectional shape having longitudinally extending front and rear edges, the body being constituted by a body portion of dispersedfibre reinforced plastic material having an outer skin portion constituted by a layer of matted fibres impregnated with said plastic material and integrally moulded therewith, the skin defining a longitudinally extending, contoured frontal portion of substantial thickness and a horizontal relatively thin flanged portion extending rearwardly therefrom, the contoured frontal portion having a convex upper surface defining a raised kerb, raised relative to said flanged portion, and a retainer member for a swimming pool liner, the retainer member being constituted by a metallic member having a keyed upper portion embedded in and fixedly anchored to said body portion and a flanged lower portion defining a longitudinally extending channel facing said frontal portion and adapted to receive the edge of the liner, said horizontal flanged portion having a horizontal lower surface adapted to lie on a floor structure, the frontal portion having a longitudinally stepped lower surface providing a horizontal lower surface of the flanged portion and a raised surface portion and having a horizontal base flange coplanar with said lower surface portion.
Claim 3
Dependent Claim
27 words
A composite protective coping member according to claim 1, wherein the materials of said body portion and said skin portion are glass fibre reinforced thermosetting plastic materials.
Claim 4
Dependent Claim
17 words
A composite protective coping member according to claim 2, wherein the retainer member is an aluminum extrusion.
Claim 5
Dependent Claim
35 words
A composite protective coping member according to claim 1, wherein said base flange has an upwardly projecting, longitudinally extending, terminal lip defining one edge of the liner-retaining channel and providing an anchorage for the liner.
Claim 6
Dependent Claim
23 words
A composite protective coping member according to claim 4, wherein the terminal lip is spaced rearwardly from the front edge of the body.
Claim 7
Dependent Claim
39 words
A composite protective coping member according to claim 5, wherein the rear edge of the horizontal flanged portion of the body has a downturned terminal flange adapted to be secured to a vertical wall surface of said floor structure.
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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) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |