Impact pipe wrench

Details Impact pipe wrench Impact pipe wrench

1991-05-28

1992-08-18

Smith, James G.

Tools

Including tool driving by impact delivering component or...

81 5733, 81464, B25B 1900

Patent

active

051389150

ABSTRACT:
A wrench has a handle with a jaw for gripping a workpiece. The jaw is formed of a first jaw member which moves transversely with respect to the handle and a second jaw member which is connected to the handle by an adjustment nut and extension to move relative to the first jaw member. An air motor delivers impact forces to a hammer which in turn transfers the impact forces to the first jaw member. The air motor is controlled by a valve secured to the handle. The surfaces of the jaw members may be exchanged to interface with specific workpieces.

REFERENCES:
patent: 4307635 (1981-12-01), Genova
patent: 4436002 (1984-03-01), Kennington et al.
patent: 4771661 (1988-09-01), Levchenko et al.

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