Fire resistant connections and dovetail-like sealing means there

Details Fire resistant connections and dovetail-like sealing means there Fire resistant connections and dovetail-like sealing means there

1983-02-24

1984-10-16

Ward, Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 22, 2771675, 277235A, 277236, F16J 1508

Patent

active

044770928

ABSTRACT:
A fire resistant connection (14) that embodies a sealing means (44) and that is operable for purposes of effectuating the establishment of a fire resistant seal between mating surfaces (52, 54), and in particular mating surfaces (52, 54) of the type that commonly are found to be present in wellhead and valve equipment (10). The subject fire resistant connection (14) includes mating seal surfaces (52, 54) and the aforementioned sealing means (44). The sealing means (44) comprises a seal ring (44), which includes a plurality of seal lips (46, 48) and a dovetail-shaped rib (50), the latter (50) being formed on the seal ring (44) so as to be located in interposed relation between the pair of adjacent seal lips (46, 48). Each of the plurality of seal lips (46, 48) is suitably configured so as to be positionable in sealing engagement with a corresponding one of the mating seal surfaces (52, 54), the latter (52, 54) embodying a configuration that is complementary in nature to that of the seal lip (46, 48) engaged thereby. Likewise, the rib (50) is suitably configured such that when the seal lips (46, 48) are in sealing engagement with the mating seal surfaces (52, 54), the rib (50) is also engaged by the mating seal surfaces (52, 54) and is locked in position thereby.

REFERENCES:
patent: 368189 (1887-08-01), Carter
patent: 2309446 (1943-01-01), Ekkebus
patent: 3208758 (1965-09-01), Carlson et al.
patent: 3355181 (1967-11-01), Olson

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