Torque wrench

Details Torque wrench Torque wrench

2006-01-31

2006-01-31

Thomas, David B. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Responsive to torque on work

C081S482000, C081S059100

Reexamination Certificate

active

06990877

ABSTRACT:
A torque wrench includes a pressure handle, a sheath end, a directional brake module, an overload movement ring, rolling rods, rolling beads and spring bolsters. The overload movement ring is provided between the brake section of directional brake module and the assembly groove of sheath end. The interior of the overload movement ring is designed with a circular tooth rim for the articulation/brake of the brake section of directional brake module, whereas the exterior is designed with a polygon. Moreover, a containment groove is provided at the intersection of various surfaces to accommodate the rolling rod and rolling bead, thus the outer flank of various rolling rods and rolling beads will protrude the aperture of the containment groove, and then keep in close contact with the wall of the assembly groove. One surface of the overload movement ring is supported and braked by the movable shore of spring bolster.

REFERENCES:
patent: 1860871 (1932-05-01), Pouliot
patent: 2332971 (1943-10-01), Johnson
patent: 2556587 (1951-06-01), Keen
patent: 2972271 (1961-02-01), Gill
patent: 6742418 (2004-06-01), Amami

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