F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
285/41
F16L 27/02 (2006.01) F16J 15/06 (2006.01) F16J 15/16 (2006.01) F16L 27/08 (2006.01) F16L 27/10 (2006.01)
Patent
CA 1200572
ABSTRACT OF THE DISCLOSURE A fire-safe seal for use in a swivel joint in a pressurized fluid system subject to fire risk, the seal having both a metal anti-extrusion ring and an annular resilient non-metallic seal member to provide essentially zero fluid linkage at normal operating temperatures, and the anti-extrusion ring to provide an extremely low rate of leakage in the event high temperature should destroy the resilient seal member. A curved spring or other metal anti-cocking device biases the anti-extrusion ring tightly against the junction of a male and a female joint to en- sure that the ring remains in position after the resilient seal member is destroyed to prevent leakage through the junction.
417339
Fetherstonhaugh & Co.
Fmc Corporation
LandOfFree
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