Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1981-12-07
1982-10-12
Ward, Jr., Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277117, 277124, 277125, 277190, 285140, F16J 1508, F16J 1510
Patent
active
043535607
ABSTRACT:
A metallic sealing ring assembly (10) for sealing an annulus between metallic surfaces of concentric tubular members. The assembly comprises a central metallic sealing ring (11) having flared upper and lower annular flanges (14, 15, 16, 17) at both its inner and outer peripheries. The sealing ring 11 is sandwiched between upper and lower adapter rings (12, 13) disposed concentric therewith and formed with bevelled annular edges (12a, 12b, 13a, 13b) which contact flared surfaces (14a, 15a, 16a, 17a) of the sealing ring flanges (14, 15, 16, 17) at a mating angle of five degrees. When axially compressed, the annular flanges of the metal sealing ring (11) are deflected radially and at their tips are deformed and extruded against the surfaces of the members (18, 19) defining the annulus to establish metal-to-metal seals therewith. The flanges are truncated at their free ends whereby initial engagement of the adapter rings (12, 13) with the metallic sealing ring (11) and annulus defining members (18, 19) is along the annular edges (14c-17c, 14d-17d) of the flange tips and the compression force is concentrated thereat. Axial loading is applied by holddown screws (50) with tips (51) in camming engagement with a camming surface (52) on the upper adapter ring (18).
REFERENCES:
patent: 412874 (1889-10-01), Chaddack 277
patent: 2075947 (1937-04-01), Kennedy
patent: 3047301 (1962-07-01), Taylor et al.
patent: 3797864 (1974-03-01), Hynes et al.
patent: 3915462 (1975-10-01), Bruns et al.
patent: 4131287 (1978-12-01), Gunderson et al.
Marnock Marvin J.
W-K-M Wellhead Systems, Inc.
Ward, Jr. Robert S.
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