Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1982-12-27
1984-07-10
Smith, Robert I.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
166 75A, 285137A, F16L 3316, F16L 3900
Patent
active
044589034
ABSTRACT:
A sealing connection for the passage of a fluid control line through adjoining members. The connection comprises a metallic tubular sealing element (10) provided with tapered end portions, each end having internal frusto-conical surfaces (32, 33) and external frusto-conical surfaces (41,43) in coaxial alignment with the bore (31) through the element (10). The external frusto-conical surfaces (41, 43) provide metal-to-metal sealing with aligned frusto-conical seating surfaces (62, 54) in opposed pockets (51, 61) formed in aligned portions (28a, 29) of the control line at their respective openings at the adjoining surfaces of the adjoined member (13, 12). The tubular sealing element (10) is subjected to axial compression between the frusto-conical pocket seating surfaces (62, 54) when the adjoined members (13, 12) are bolted tightly together which results in deformation of its tapered end portions to provide metal-to-metal sealing with the adjoined members (13, 12) which is effective to seal against both internal and external fluid pressurization of the control line and without internally obstructing or restricting the control line. Secondary sealing is provided by elastomeric O-ring seals (36, 39) mounted in circumferential annular grooves formed in the exterior of the tubular sealing element (10).
REFERENCES:
patent: 3068896 (1962-12-01), Grove
patent: 3166345 (1965-01-01), Pinkard
patent: 3248130 (1966-04-01), Knight
patent: 3451481 (1969-06-01), Lanmon
patent: 3479063 (1969-11-01), Raver
patent: 3594022 (1971-07-01), Woodson
patent: 4077472 (1978-03-01), Gano
patent: 4229027 (1980-10-01), Morrill
patent: 4384728 (1983-05-01), Koltookian
patent: 4418923 (1983-12-01), Halabya
Marnock Marvin J.
Smith Robert I.
W-K-M Wellhead Systems, Inc.
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