Tools – Wrench – screwdriver – or driver therefor – Having work engaging and force exerting portion inserted...
Reexamination Certificate
2006-07-11
2006-07-11
Thomas, David B. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Having work engaging and force exerting portion inserted...
C081S461000
Reexamination Certificate
active
07073416
ABSTRACT:
The present invention provides a fastener that can be used with a variety of bits as well as a fastener with several security features that can be used only with a very specialized bit and, also, a fastener/bit combination that can be used in conjunction with high-torque power tools. Specifically, this invention allows the use of a straight blade, a three-blade or a five-blade driver with the same fastener head.
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Kozak Burton
Kozak Ira M.
Cherskov & Playnik
Eazypower Corporation
Scruggs Robert
Thomas David B.
LandOfFree
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