Tools – Wrench – screwdriver – or driver therefor – Attachment – or including adjunct or replaceable portion
Patent
1984-06-21
1986-03-18
Jones, Jr., James L.
Tools
Wrench, screwdriver, or driver therefor
Attachment, or including adjunct or replaceable portion
269283, 81421, B25B 1358
Patent
active
045760675
ABSTRACT:
A jaw assembly is provided for gripping tubular members, particularly pipes. The assembly comprises a jaw member, which is attachable to a conventional gripping mechanism, and a removable die which is attachable to the jaw member. The jaw member is provided with a concave surface having parallel grooves which are radially spaced over the concave surface. The die is provided with a convex surface conforming to the curvature of the concave surface of the jaw member. The convex surface of the die is provided with splines which are alignable with and matingly insertable within the grooves on the jaw member. The die is also provided with a concave surface conforming to the radial curvature of the pipe or other tubular member to be gripped.
REFERENCES:
patent: 3021149 (1962-02-01), Griffin
patent: 3023651 (1962-03-01), Wallace
patent: 4315447 (1982-02-01), Tartaglia et al.
Jones Jr. James L.
Kiesel William David
Tucker Robert C.
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