Patent ID: 8720874

Claim:
A lock assembly comprising a lock housing having an outer surface of size to fit within aligning first and second bores of first and second members that are to be clamped together, with a first bore in the first member having a chamfered surface surrounding the bore at an end of the first bore remote from the second member, the lock housing having a second end and having a central bore extending along an axially length of the lock housing, a plurality of radially extending bores in the lock housing adjacent the first end of the lock housing and extending from the outer surface to the central bore, a separate lock actuator member in each of the radial bores, each lock actuator member having a second camming surface at an outer end, an actuator in the central bore of the lock housing operable to provide a force on the first camming surface of the lock actuator members to urge the lock actuator members outwardly of the lock housing so the second camming surfaces extend out from the lock housing, an actuator ring rotatably mounting the second end of the lock housing and the actuator ring being supportable on an outer surface of the second member opposite from the first member, and the lock housing having at least one cam track on the outer surface thereof adjacent an end spaced from the radial bores, the actuator ring having a cam follower fitting in the at least one cam track, the cam track having a pitch such that relative rotation of the lock housing and the actuator ring as the cam follower moves along the cam track changes the axial position of the lock housing relative to the actuator ring.