Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1990-01-02
1991-12-10
Cuchlinski, Jr., William A.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
220378, 277 71, 277105, 277106, 277173, 277207A, 285 95, 285348, 285901, F16J 1510
Patent
active
050711407
ABSTRACT:
A self-pressurized gasket seal arrangement comprising a first pressure part (12) having a first wall (14) surrounding a central axis (16) for confining fluid under pressure and a first shoulder (18) rigidly supported by the wall. The first shoulder defines a first support surface (20) transverse to the axis. A second pressure part (22) defines a second, substantially annular support surface (28) transverse to the axis. An annular seal ring (30) is situated for limited axial movement between the first and second support surfaces and has first and second ring surfaces (32, 34) oriented in opposite axial directions. The seal ring includes a ridge (36) for bearing on the first support surface to limit the movement of the seal ring axially away from the second pressure part and to transmit the initial preload uniformly. At least one gasket seat (40, 42) is provided on the second ring surface and annular gaskets (46, 48) are situated on each of the gasket seats. A chamber (52) maintains a portion of the ring second surface at ambient pressure while the first pressure part and the ring first surface are at the fluid pressure, whereby the fluid pressure urges the seal ring toward the second pressure part to compress the gaskets between the gasket seats and the second support surface of the second pressure part.
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Cuchlinski Jr. William A.
Cummings Scott W.
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