Tools – Wrench – screwdriver – or driver therefor – Rigid jaws
Reexamination Certificate
2005-06-14
2005-06-14
Meislin, Debra S (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Rigid jaws
C081S436000
Reexamination Certificate
active
06904833
ABSTRACT:
An asymmetrical wrench and fastener system comprising radially extending splines having opposing surfaces whose inner ends are inclined by different amounts with respect to a radius intersecting the respective inner ends to alter the torque between the tightening and loosening directions. This configuration makes it either easier or harder to loosen the fastener than it was to tighten it, depending on the amount the opposing surfaces of the splines are inclined.
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Hochberg D. Peter
Meislin Debra S
Mellino Sean
Vieyra Katherine R.
Wright Tool Company
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