Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1982-04-12
1983-10-18
Smith, Robert I.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 75, 2771675, F16J 1506, F16J 1540
Patent
active
044101864
ABSTRACT:
A sealing system for pressurized flanged joints such as for use in flow line systems, wellhead assemblies, vessel joints, etc. The flanges of the pressure containing system are formed to define circular seal grooves having oppositely tapered circular side walls. Ring seal means is provided having a cross-sectional configuration that tapers from a large dimension intermediate the axially extremities to smaller dimensions at each of the axial extremities, thus defining tapered seal surfaces for sealing engagement with respective side walls of the seal grooves. The ring seals may define a passage means communicating the axial extremities and may also define yieldable resilient sealing lips thus enabling radial yielding of the sealing lips as the tapered side walls of the seal grooves are urged into sealing engagement with the seal ring. The sealing lips of flexible nature may be defined by the ring seal at the axial extremities or at either of the inner and outer peripheries of the ring seal. The flexible sealing lips are deflected radially as the ring seal is urged into the seal grooves and maintains sealing engagement with the side walls of the seal grooves in the event of slight flange separation or groove enlargement by metal coining. The joint sealing system incorporates detection means in communication with at least one of the seal grooves for detecting pressure changes that indicate seal leakage. The system also incorporates sealant injection means for injecting sealant into the seal grooves to form an auxiliary backup seal in the event leakage is detected.
REFERENCES:
patent: 580049 (1897-04-01), Heim et al.
patent: 3030118 (1962-04-01), Groce
patent: 3083023 (1963-03-01), Creavey
patent: 3290047 (1966-12-01), Mayer
patent: 3329447 (1967-07-01), Hitz
patent: 3479063 (1969-11-01), Rauer
patent: 4087097 (1978-05-01), Bossens
patent: 4193604 (1980-03-01), Sarvanne
patent: 4335883 (1982-06-01), Le Roux
D/498 USA S. E. Beall and J. A. Swartout, vol. III p. 278.
Petroleum Designers, Inc.
Smith Robert I.
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