Pipe joints or couplings – With fluid pressure seal – Flexible lip
Patent
1993-10-08
1994-06-28
Nicholson, Eric K.
Pipe joints or couplings
With fluid pressure seal
Flexible lip
285345, 285379, F16L 1704
Patent
active
053240839
ABSTRACT:
A pipe connection which the insertion piece fits into a sleeve and presses a retaining ring there against. The retaining ring has a compression rib and is constructed so as to be urged into a channel in the sleeve, The ring body is formed unitarily with a sealed lip and a closure lip and a compression-relieving groove opens axially in the direction of insertion and extends almost to but is spaced from a radial plane of the compression rib.
REFERENCES:
patent: 3857589 (1974-12-01), Oostenbrink
patent: 4298206 (1981-11-01), Kojima
patent: 4487421 (1984-12-01), Housas et al.
patent: 4602793 (1986-07-01), Andrick
patent: 4991858 (1991-02-01), Abila et al.
Dipl.-Ing. Dr. Ernst Vogelsang GmbH & Co. KG
Dubno Herbert
Kateshou Yuri
Nicholson Eric K.
Wilford Andrew
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