Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1987-02-02
1989-01-10
Ward, Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 1, 277237R, 285192, 521697, 4507, F16J 1510
Patent
active
047968990
ABSTRACT:
A method and device which provide a liquid-tight seal between a length of pipe, a housing, or other hollow structure and cured concrete in which the structure is embedded. A foamed polymeric sealing element is bonded about a portion of the exterior surface of the structure, and gunnite or concrete is cast about the structure and the sealing element. The interface of the concrete and the foamed polymeric sealing element become substantially permanently sealingly engaged. The method and device are particularly useful in the construction of swimming pools or similar fluid-containing vessels in which pipes or housings penetrate cast walls meant to confine water or other fluids. The method and device may also be used to form seals about structures penetrating cast foundations, dams, bulkheads, retaining walls, cisterns and basement walls.
REFERENCES:
patent: 1210217 (1916-12-01), Schodde
patent: 4063759 (1977-12-01), Steimle
patent: 4086736 (1978-05-01), Landrigan
Herrick Robert S.
Webb Gary E.
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