Gripping tool with driven screw grip activation

Details Gripping tool with driven screw grip activation Gripping tool with driven screw grip activation

2011-03-01

2011-03-01

Wright, Giovanna C (Department: 3672)

Boring or penetrating the earth

Wedging slip assembly for supporting a pipe or rod

C166S077520, C166S077530

Reexamination Certificate

active

07896111

ABSTRACT:
A gripping tool having at least one body, including an associated load adaptor adapted to be connected to and interact with one of a drive head or reaction frame. A gripping assembly, carried by the body, has a grip surface adapted to move from a retracted position to an engaged position to radially engage one of an interior surface or an exterior surface of a work piece upon relative axial displacement of the body relative to the grip surface in at least one axial direction. A grip activation assembly acts between the body and the grip surface to increase a grip ratio of radial load upon the gripping assembly relative to axial displacement of the body relative to the grip surface. The grip activation assembly includes a motor driven load screw to create relative axial displacement of the body relative to the grip surface.

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