Tubular handling device

Details Tubular handling device Tubular handling device

2007-01-04

2009-06-30

Bagnell, David J (Department: 3672)

Wells

Above ground apparatus

With assembly or disassembly means

C166S098000, C166S077510, C166S075140, C175S423000, C294S094000

Reexamination Certificate

active

07552764

ABSTRACT:
A tubular handling apparatus comprising a slotted member having a plurality of elongated slots each extending in a direction, a recessed member slidably coupled to the slotted member and having a plurality of recesses each tapered in the direction from a shallow end to a deep end, and a plurality of rolling members each retained between one of the recesses and one of the slots, wherein each rolling member partially extends through the adjacent slot when located in the shallow end of the recess, and wherein each rolling member retracts within an outer perimeter of the slotted member when located in a deep end of the recess. The apparatus may further comprise a plurality of biasing elements each biasing a corresponding one of the rolling members towards the shallow end of the corresponding recess.

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