Patent ID: 6231265
Filing Date: 2001-05-15
Classification: E21B,Y10T

Abstract:
A latching assembly, comprising:a first mating portion;a second mating portion;a first cam member mounted on the first mating portion, the first cam member having a first profile;a second cam member mounted on the second mating portion, the second cam member having a second different profile adapted to inter-fit with the first profile;the first and second profiles being engageable to rotate the first and second cam members to enable inter-fitting of the first and second profiles; anda releasable lock mechanism provided in the first mating portion adapted to engage a lock profile in the second mating portion,wherein the releasable lock mechanism comprises a piston moveable between a first position and second position to actuate the lock mechanism between a locked and released position;wherein the first cam profile comprises a first helical profile which terminates in a slot; and wherein the second cam profile comprises a second helical profile comprises a second helical profile which terminates in a key.