Attachment bolt for positive locking
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United States of America Patent
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-
Dec 19, 2017
Issued Date -
N/A
app pub date -
Apr 28, 2014
filing date -
May 2, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A fastening bolt has a threaded screw (11) with a terminal portion (18) whose diameter (19) is less than that of the threaded portion, and an end surface (21) of said terminal portion has a transverse opening groove (22). The fastening bolt also has a nut (30) comprising a threaded body (32) and an unthreaded crown (34) drilled with at least two holes (35) diametrically opposite to one another and a rod (23), able to fit in the groove of the screw and in the two lateral holes of the nut to lock the bolt. The body of the nut comprises a driving portion (38), as well as a cylindrical portion (39) less thick than the driving portion, and the cylindrical portion (39) of the nut has an elliptical deformation that was previously a circular shape.
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