F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
61/5.9
F16L 27/12 (2006.01) F16L 55/16 (2006.01)
Patent
CA 1329488
Abstract of the Disclosure An improved telescoping joint suitable for use in repair of subsea pipelines including an inner tubular member, an outer tubular member for receiving the inner tubular member therein, pressure responsive means for extending the joint by causing relative extending movement between the members, pressure responsive means for re- tracting the joint by causing relative retracting movement between the members, pressure responsive locking means for camming gripping elements into tight locking engagement between the members, and a pressure responsive sealing means for providing a metal-to-metal seal between the members upstream of said extending means, said retracting means and said locking means. Additionally testing means is provided to establish the fluid tightness of the sealing means in the subsea location prior to the instal- lation of the joint into the pipeline as a replacement for a damaged section which has been removed. Both locking means and sealing means are releasable by reversing the application of fluid pressure to the means.
546251
Cooper Cameron Corporation
Smart & Biggar
LandOfFree
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