Tools – Wrench – screwdriver – or driver therefor – U-crank arm
Reexamination Certificate
2007-04-03
2007-04-03
Thomas, David B. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
U-crank arm
C081S177900
Reexamination Certificate
active
11416823
ABSTRACT:
A hinged socket wrench speed handle having an offset shank (20) with a first end (22) and a second end (24). Attached to the first end (22) is a clevis (28) which receives a 180-degree drive head that is held by a hinge pin (40). The drive head consists of either a square drive head (30) or a ratchet drive head (31). To the second end (24) is attached a handle (58), which rotates the wrench. A second embodiment of the hinged socket wrench includes a second clevis (28) that is added to the second end (24) of the offset shank. The second clevis (28) adds further combinations of angular displacement of the handle (58). Thus increasing the value of the wrench as a tool and also its utility in difficult work areas. The wrench consists of five hinge pin (40) variations which provide additional surface interface with both the hinge pin and the handle yoke, thereby improving the structural integrity and prolonging the tool's life.
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Cota Albert O.
Thomas David B.
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