Wellbore rig elevator systems

Details Wellbore rig elevator systems Wellbore rig elevator systems

2007-12-04

2007-12-04

Bagnell, David (Department: 3672)

Wells

Processes

Assembling well part

C166S380000, C166S077520

Reexamination Certificate

active

11231290

ABSTRACT:
An elevator having, in at least certain aspects, an elevator body with two opposed ends and an elevator opening in the body, a door pivotably mounted to the body for selectively closing off the elevator opening, a lock bar on the elevator body, door latch apparatus on the door including a movable member to selectively and releasably hold the lockbar, and locking apparatus for selectively locking the door in position; and, in certain aspects, verification apparatus for maintaining the locking apparatus in position.

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