Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1978-09-05
1979-12-11
Ward, Jr., Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277207A, 277208, 277230, 138130, 138155, 285110, F16J 1532
Patent
active
041780019
ABSTRACT:
A pipe coupling including an annular lip seal that wipes the contacted pipe portion clean, when inserted therein. The lip seal also, while the pipe is situated in place while in use, precludes the entry of foreign material, such as sand or dirt, between the pipe and coupling. An inner seal further prevents leakage between the pipe and the coupling.
REFERENCES:
patent: 1926197 (1933-09-01), Durr
patent: 2485940 (1949-10-01), Tremolada
patent: 3573871 (1971-04-01), Warner
patent: 3575430 (1971-04-01), Alpine
patent: 3667782 (1972-06-01), Viazzi
patent: 4023834 (1977-05-01), Ewing et al.
Greene Bernard A.
Stanley John M.
Amsted Industries Incorporated
Brosius Edward J.
Kostka Fred P.
Schmitt John L.
Ward, Jr. Robert S.
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