Wrench orifice with lateral gripping grooves
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Dec 11, 2001
Grant Date -
N/A
app pub date -
Nov 20, 2000
filing date -
Nov 20, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A wrench tool is described for turning fasteners. The wrench tool comprises an orifice and means to reduce tilting of a fastener therein while being torqued. The orifice is substantially cylindrical and has a predetermined maximum circumference at a driving end thereof. The orifice further comprises an array of longitudinal engaging surfaces positioned therein around an imaginary central axis. The means to reduce tilting comprises at least one groove formed at least partially within at least one of the longitudinal engaging surfaces. Each groove is formed laterally relative to the imaginary central axis and has a depth which does not penetrate outwardly beyond the maximum circumference of the orifice. And, each groove is positioned at least slightly away from the driving end of the orifice.
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