Baths – closets – sinks – and spittoons – Dry closets – With heating meas
Patent
1973-12-27
1976-02-17
Artis, Henry K.
Baths, closets, sinks, and spittoons
Dry closets
With heating meas
52169R, 52282, 52288, 52309, 52495, 52588, E04H 316, E04H 318, F16L 2102
Patent
active
039381994
ABSTRACT:
A swimming pool which has a plastic liner sheet having an inner surface directed toward the interior of the pool to define the interior thereof and an outer surface directed away from the interior of the pool. A plastic backing structure which is rigid engages the outer surface of the liner sheet so as to form a backing for the latter. The plastic backing structure takes the form of a plurality of units situated one next to the other along the periphery of the pool with each of these units being composed of a series of extrusions situated one next to the other. Each of the extrusions is hollow and has front and rear parallel walls interconnected by strips which are situated one above the other between these walls.
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patent: 3292325 (1966-12-01), Nicolini
patent: 3396500 (1968-08-01), Lankheet
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patent: 3564791 (1971-02-01), Arp
patent: 3605363 (1971-09-01), Bard
patent: 3720964 (1973-03-01), Thomson
patent: 3736599 (1973-06-01), Kessler et al.
patent: 3739539 (1973-06-01), Posnick
patent: 3797049 (1974-03-01), DeSanto
patent: 3801993 (1974-04-01), Stalder
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