US3959830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swimming pool
Assignee: Kdi Sylvan Pools Inc
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Filing: 1975-04-28
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Granted: 1976-06-01
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Expires: 1995-04-28
Abstract
Abstract An in-ground swimming pool of completely plastic construction is comprised of a wall portion having the upper edge thereof substantially at ground level and a flexible plastic liner which is secured to the top of the wall portion and completely covers the interior sides of said wall portion and the bottom portion of the pool. The wall portion is comprised of a plurality of extruded plastic panels interconnected with each other by means of integral tongue and groove members on the panels which are rigidly secured together by solvent bonding of each respective tongue and groove connection. An extruded plastic coping member is provided with an upwardly extending channel in the bottom surface thereof adapted to be force-fitted over the top of the wall portion to secure the vinyl liner therebetween. At least some of said wall panels are provided with externally opening slots adapted to receive extruded plastic support wall panels perpendicular thereto which are provided with tongue means along at least one edge thereof to help stabilize the wall portion. Each wall panel may be formed by two spaced apart walls interconnected by transverse connecting walls or may be comprised of a single wall having tongue and/or groove defining members integrally formed therewith adjacent opposite edges thereof and at at least one location intermediate the ends thereof. The single wall panels may be bent into a curved configuration to provide corner members for a substantially rectangular pool or to provide a generally free form pool. Additional extruded plastic panels having tongue and groove defining members at opposite sides thereof may be interconnected at right angles to each other to provide steps within the pool with the uppermost riser being secured to the underside of the coping by a tongue and groove connection.
Inventors
- 👤 William A. van den Broek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:13
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/14; E04H4/144; E04H4/0018; E04H4/0043; E04H4/148
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
80 words
A swimming pool structure comprising a plurality of interconnected vertically disposed elongated wall panels of plastic material defining the wall portion of said pool, said panels having complementary interlocking tongue and groove connecting means along opposed longitudinal side edges to prevent lateral separation of said panels, said tongue and groove connecting means being additionally solvent bonded to prevent relative longitudinal movement of said panels relative to each other and to permanently join said panels into an integral one-piece wall assembly.
Claim 2
Dependent Claim
80 words
A swimming pool structure comprising a plurality of interconnected vertically disposed elongated wall panels of plastic material defining the wall portion of said pool, said panels having complementary interlocking tongue and groove connecting means along opposed longitudinal side edges to prevent lateral separation of said panels, said tongue and groove connecting means being additionally solvent bonded to prevent relative longitudinal movement of said panels relative to each other and to permanently join said panels into an integral one-piece wall assembly.
Claim 3
Dependent Claim
82 words
A swimming pool structure as set forth in claim 1 further comprising at least one vertically disposed stabilizing panel of plastic material disposed perpendicular to and interconnected with one of said wall panels intermediate the longitudinal side edges of said wall panel, said wall panel and said stabilizing panel being interconnected by tongue and groove connecting means to prevent lateral separation, said tongue and groove connecting means being additionally solvent bonded to prevent longitudinal movement of said panels relative to each other.
Claim 4
Dependent Claim
25 words
A swimming pool structure as set forth in claim 2 wherein said stabilizing panel and said one of said wall panels have identical cross-sectional configurations.
Claim 5
Dependent Claim
72 words
A swimming pool structure as set forth in claim 1 wherein at least one of said wall panels is comprised of two flat spaced apart parallel surface walls and a plurality of transverse integral side walls and internal reinforcing walls defining a rigid hollow panel, groove means formed in one side wall and in one of said surface walls intermediate the side walls and tongue means formed on the other side wall.
Claim 6
Dependent Claim
18 words
A swimming pool structure as set forth in claim 4 wherein said panel is of extruded plastic material.
Claim 7
Dependent Claim
48 words
A swimming pool structure as set forth in claim 5 wherein said groove means is provided with an entrance slot narrower than the width of said groove means and said tongue means is provided with a head portion complementary to said groove means and wider than said slot.
Claim 8
Dependent Claim
99 words
A swimming pool structure as set forth in claim 1 wherein at least one of said panels is comprised of a flat surface wall and a pair of spaced apart side walls integral therewith and extending from said surface wall perpendicular thereto on the same side, groove means in one of said side walls, complementary tongue means protruding from the other side wall, extension means extending outwardly from said surface wall on the same side as said side walls intermediate said side walls and additional groove means identical to said first mentioned groove means formed in said extension means.
Claim 9
Dependent Claim
18 words
A swimming pool structure as set forth in claim 7 wherein said panel is of extruded plastic material.
Claim 10
Dependent Claim
50 words
A swimming pool structure as set forth in claim 8 wherein each of said groove means is provided with an entrance slot narrower than the width of said groove means and said tongue means is provided with a head portion complementary to said groove means and wider than said slot.
Claim 11
Dependent Claim
73 words
A swimming pool structure as set forth in claim 1 wherein one of said panels is comprised of a smooth curved wall portion having side walls integrally formed therewith at each end thereof, said side walls being disposed perpendicularly to said curved wall portion and being disposed orthogonal relative to each other, one of said side walls having groove means formed therein and tongue means protruding from the other of said side walls.
Claim 12
Dependent Claim
35 words
A swimming pool structure as set forth in claim 10 further comprising additional groove means formed on the same side of said curved wall surface as said side wall end disposed intermediate said side walls.
Claim 13
Dependent Claim
34 words
A swimming pool structure as set forth in claim 1 wherein said pool has a substantially rectilinear configuration with said wall panels increasing in length from one end of said pool to the other.
Claim 14
Dependent Claim
90 words
A swimming pool structure as set forth in claim 1 further comprising a coping member having a substantially flat upper surface merging with a rounded edge portion along one edge thereof and channel means formed on the under side of said flat surface adjacent said rounded portion, said channel having a width substantialy equal to the thickness of said wall panels for receiving the upper ends of said wall panels, said rounded portion having downwardly opening groove means having a configuration identical to the groove means in said wall panels.
Claim 15
Dependent Claim
74 words
A swimming pool structure as set forth in claim 13 further comprising stair means comprised of a plurality of tread members and riser members of plastic material, each of said tread members and riser members having tongue means along one edge and groove means along the opposite edge for interconnection with each other, the upper edge of the top riser having tongue means disposed interengage relation with the groove means in said coping member.
Claim 16
Dependent Claim
40 words
A swimming pool structure as set forth in claim 13 further comprising a plurality of hook members having tongue means formed thereon and interconnected with said groove means in said coping member for supporting pool accessories such as a cover.
Claim 17
Dependent Claim
91 words
A panel for a swimming pool wall adapted to be vertically disposed comprising a flat surface wall having a pair of spaced apart side walls integral with and extending from said surface wall perpendicular thereto on the same side, groove means in one of said side walls, complementary tongue means on the other side wall, extension means extending outwardly from said surface wall on the same side as said side walls intermediate said side walls and additional groove means identical to said first mentioned groove means formed in said extension means.
Claim 18
Dependent Claim
91 words
A panel for a swimming pool wall adapted to be vertically disposed comprising a flat surface wall having a pair of spaced apart side walls integral with and extending from said surface wall perpendicular thereto on the same side, groove means in one of said side walls, complementary tongue means on the other side wall, extension means extending outwardly from said surface wall on the same side as said side walls intermediate said side walls and additional groove means identical to said first mentioned groove means formed in said extension means.
Claim 19
Dependent Claim
41 words
A panel as set forth in claim 16 further comprising a pair of additional coplanar flat walls integrally connected to said side walls and said extension means on opposite sides of said groove means parallel to said first mentioned surface wall.
Claim 20
Dependent Claim
16 words
A panel as set forth in claim 17 wherein said panel is of extruded plastic material.
Claim 21
Dependent Claim
46 words
A panel as set forth in claim 17 wherein said groove means is provided with an entrance slot narrower than the width of said groove means and said tongue means is provided with the head portion complementary to said groove means and wider than said slot.
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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) | 1979-06-01 | 1979-12-01 | 1980-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-01 | 1983-12-01 | 1984-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-01 | 1987-12-01 | 1988-06-01 | $7700.00 | Window Closed / Lapsed |