Top drive assembly

Details Top drive assembly Top drive assembly

E - Fixed Constructions

21

B

E21B 3/02 (2006.01) E21B 19/00 (2006.01)

Patent

CA 2487218

A top drive assembly for wellsite operations may include a quill, a swivel including a swivel housing and a swivel bearing therein in which the quill is supported, a drive system for applying torque to the quill, and link arm hangers extending from the swivel housing and formed to accept and retain link arms.

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