Tools – Wrench – screwdriver – or driver therefor – Handle or shank
Reexamination Certificate
2007-04-03
2007-04-03
Hail, III, Joseph J. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Handle or shank
C081S177700, C081S177800
Reexamination Certificate
active
11441038
ABSTRACT:
A hand tool includes a head which has an insertion and first teeth are defined in an outer periphery of the insertion. The insertion is pivotably connected to a recess between two lugs on a handle and a first biasing device is connected to an inner end of the recess. A control member is located between the insertion and the inner end of the recess, and has second teeth which are engaged with the first teeth. A cam-like protrusion projects from an underside of the control member and includes a curved outer surface which is in contact with the first biasing device. The first and second teeth are disengaged from each other when pivoting the control member so that the head can be pivoted, the first and second teeth are engaged again when the control member are pivoted back such that the head is positioned at a desired position.
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patent: 7036403 (2006-05-01), Lin
patent: 7051625 (2006-05-01), Lee
Grant Alvin J
Hail III Joseph J.
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