Tools – Wrench – screwdriver – or driver therefor – Rigid jaws
Reexamination Certificate
2005-03-29
2005-03-29
Hall, III, Joseph J. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Rigid jaws
C081S060000, C081S180100
Reexamination Certificate
active
06871570
ABSTRACT:
An improved ratchet or gear wrench that has a built-in, non-slip, gripping clip mechanism for retaining a nut in the tool, which can either be applied to the nut or clamped out-of-the-way. This tool allows a nut to be tightened or loosened from a bolt or threaded stud more quickly and with one hand. To attain this, the present invention essentially comprises a spring-loaded curveshaped gripping clip, mounted near the boxed-end of a ratchet wrench, which wraps around the opening of the wrench. The spring action of the gripping clip allows it to be easily pulled away from the opening of the wrench and clamped in an out-of-the-way position by means of a clamp or released into a functional gripping position by pushing downward on the clamp's release button. When released, the gripping clip presses against a nut, thereby creating pressure that secures the nut in the opening of the wrench. Optionally, a second gripping clip mechanism can be added on the opposite side of the wrench, positioned to apply force on the nut from the opposite direction, thereby providing non-slip nut retaining capability. In use, a mechanic or user will pull the spring-loaded gripping clip back away from the wrench's opening and snap it into the clamp, thereby storing potential energy in the spring. A nut is then placed in the wrench opening and the clamp's release button is pressed momentarily in a downward motion, releasing the gripping clip and allowing the spring to pull the gripping clip against the nut. The nut can be started on the bolt using only one hand and then quickly tightened without the wrench slipping off the nut. When removing a nut, the nut will remain retained in the tool until the user removes it, thereby preventing the nut from falling into an undesirable location that may make it difficult to find or reach.
REFERENCES:
patent: 3641847 (1972-02-01), Horton
patent: 3892150 (1975-07-01), Horton
patent: 3921474 (1975-11-01), Dyck et al.
patent: 6718849 (2004-04-01), Haas
Grant Alvin J
Hall, III Joseph J.
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