Open-ended ratcheting wrench

Details Open-ended ratcheting wrench Open-ended ratcheting wrench

1995-05-11

1997-09-30

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Rigid jaws

81186, B25B 1302

Patent

active

056716443

ABSTRACT:
The invention provides an open-ended ratcheting wrench for a hex head fastener. The wrench includes a jaw having an inner surface defining an opening for receiving the fastener. The inner surface includes arcuate heel and nose surfaces that are configured to cause the jaw to ratchet when it is rotated in one direction and that drive the fastener when the jaw is rotated in the opposite direction. The inner surface also includes tapered surfaces that provide undercut areas to protect the corners on the fastener when torque is applied to the fastener. This reduces wear at the corners. The wrench also includes a manually operable handle for rotating the jaw.

REFERENCES:
patent: 3875828 (1975-04-01), Evans
patent: 3931749 (1976-01-01), Evans

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