Method of using adjustable pivotal wrench

Details Method of using adjustable pivotal wrench Method of using adjustable pivotal wrench

2008-01-10

2009-12-29

Thomas, David B (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Rigid jaws

C081S177800

Reexamination Certificate

active

07637183

ABSTRACT:
In one embodiment, a specialty wrench has a handle that is movable from a first position where the wrench acts as a conventional pipe or Stillson wrench and a second position where the handle is inclined, perhaps as much as 90°. The wrench can be used to start rotation of a valve wheel. After the valve wheel has been broken or started, the wrench handle is pivoted to a position where the valve wheel may be continuously rotated to either its open or closed position. In another embodiment, the jaw end of the wrench is angularly adjustable about a longitudinal axis so the wrench has another mode of operation, i.e. where the wrench may be used on conventional threaded connections.

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