Coupling seal and method of assembly

Details Coupling seal and method of assembly Coupling seal and method of assembly

1982-07-28

1984-03-06

Cohan, Alan

Fluid handling

Line condition change responsive valves

Direct response valves

277 9, 277188A, 277203, 285347, 285351, F16J 912

Patent

active

044348118

ABSTRACT:
Coupling joint seals, for oil well head high pressure control equipment particularly for the assemblies of riser tubes thereof on wireline equipment, have the coupling containing a seal constructed and arranged to permit the use of a rigid non-extrusion ring, preferably of yellow brass, as a retainer or back up ring as an element of the seal. The arrangement includes a groove cut into a cylindrical surface of a coupling member that enters an annular slot therein that shall contain the seal means to be disposed therein. The rigid non-extrusion ring is screwed or threaded through the groove and into the annular slot.

REFERENCES:
patent: 2750958 (1956-06-01), Baker et al.
patent: 3058534 (1962-10-01), Keithahn
patent: 3831954 (1974-08-01), Longfellow
patent: 3948532 (1976-04-01), Hopp
patent: 4231578 (1980-11-01), Traub

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