Ratcheting open-end wrench

Details Ratcheting open-end wrench Ratcheting open-end wrench

1998-01-13

1999-10-05

Scherbel, David A.

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

81 58, 81 652, 81 68, 81186, B25B 1300, B25B 1352

Patent

active

059606797

ABSTRACT:
A ratcheting, open-end wrench concurrently engages more than half the corners of a nub during torquing. In preferred embodiments a wrench has a contacting cavity for receiving and torquing a nut, bolt head or other angularized nub. A chain carries a plurality of teeth about the inner perimeter of the cavity, and the chain is ratcheted so that the teeth move readily in one direction, but can be blocked from moving in the opposite direction. The teeth are arranged on the chain such that the cavity changes shape from an open configuration in which the nub can be received into the cavity, and a closed configuration in which the nub is locked into the cavity.

REFERENCES:
patent: 4440047 (1984-04-01), Robbins
patent: 4488459 (1984-12-01), Bailey et al.
patent: 5282830 (1994-02-01), Reynolds
patent: 5456143 (1995-10-01), Stanton

Affiliated with

Also associated with

Rating

Ratcheting open-end wrench does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ratcheting open-end wrench, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ratcheting open-end wrench will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1159920