Thread-on collared yoke for power riser pipes

Details Thread-on collared yoke for power riser pipes Thread-on collared yoke for power riser pipes

1998-05-01

2000-07-04

Kramer, Dean J.

Handling: hand and hoist-line implements

Contact lens applicator

294 821, 29237, 29255, 29280, B66C 134

Patent

active

060827939

ABSTRACT:
An attachable/detachable swivel hook and yoke for lifting a vertically oriented riser pipe section into place such that the lifted pipe section may be threadably joined to another upright riser section. The hook is swivel mounted to a yoke bracket and a threaded collar is adapted to threadably fit on the threads of a riser pipe to be lifted. The collar is held on the lifted riser pipe so that it may swivel on hook and be threaded to said upright riser pipe section.

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