Cutting by use of rotating axially moving tool – Processes – Bit detachable
Reexamination Certificate
2007-06-05
2007-06-05
Howell, Daniel W. (Department: 3722)
Cutting by use of rotating axially moving tool
Processes
Bit detachable
C408S136000
Reexamination Certificate
active
11245782
ABSTRACT:
A hand held drill leverage unit for supporting, positioning, and leveraging a drill. The leverage unit has a main lever arm pivotally supported by a fulcrum unit. A drill end of the lever arm supports the drill, while an opposing, longer, handle end of the lever allows manipulation of the lever arm to control the position of, and to leverage, the drill. A user typically grasps the drill handle in one hand, the handle end of the lever arm in the other. Pulling the handle end away from the workpiece forces a leg or foot member of the fulcrum unit against a rear side of the workpiece or of another support member, making the fulcrum unit substantially stationary relative to the workpiece, so that further pulling of the handle end forces the drill end toward the work piece. As the preferred leverage unit need not be fastened or fixed to the workpiece or other support member, the user may quickly and easily move the drill and leverage unit to multiple drilling locations. To remove the drill and leverage unit from each drilling location, the user simply may stop the pulling of the handle end, optionally swing the foot/leg out away from the workpiece, and move the drill and leverage unit away from the workpiece.
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Howell Daniel W.
Pedersen Barbara S.
Pedersen Ken J.
Pedersen & Co. PLLC
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