Pipe joints or couplings – With lubrication
Patent
1998-02-04
1999-12-28
Arola, Dave W.
Pipe joints or couplings
With lubrication
285 98, 285276, 285281, 285330, 285351, 285900, 277559, F16L 700
Patent
active
060071052
ABSTRACT:
A swivel seal assembly is defined for providing sealed high pressure fluid communication between relatively rotatable generally coaxial conduits where dynamic runout and static misalignment may occur to one conduit relative to the other. A generally tubular washpipe is mounted in pivotally articulating relation to one conduit, and a generally tubular seal housing is telescoped over the washpipe and mounted in pivotally articulating relation to the other conduit. High pressure, staged rotary seals are supported by the seal housing and maintain bearing and sealing engagement with the washpipe so that the seal housing and washpipe articulate in unison in response to said static misalignment and dynamic runout, thereby virtually eliminating relative lateral motion between the seal housing and washpipe and minimizing rotary seal extrusion damage. The seal housing and washpipe are hydraulic force balanced regardless of the pressure to which they are subjected, and thus are not subject to pressure induced loads which might otherwise interfere with articulation.
REFERENCES:
patent: 1432109 (1922-10-01), King
patent: 2185822 (1940-01-01), Young
patent: 2253932 (1941-08-01), Gilkerson
patent: 2394800 (1946-02-01), Murphy
patent: 2459472 (1949-01-01), Tremolada
patent: 2608385 (1952-08-01), Stahl
patent: 2770475 (1956-11-01), Rafferty
patent: 3929340 (1975-12-01), Peisker
patent: 4449738 (1984-05-01), Hotger
patent: 4754780 (1988-07-01), Smith
patent: 5052720 (1991-10-01), Yoda
Dietle Lannie
Kalsi Manmohan S.
Arola Dave W.
Jackson James L.
Kalsi Engineering, Inc.
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