Tool for repairing and replacing damaged studs
OwnerDon J. Sandefurinventor
Life of this patent
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Abstract
A replacement stud for an original stud damaged in existing equipment consists of an oversized section having a threaded diameter larger than the original stud and a nominal section having a threaded diameter identical to that of the original stud. The nominal section is topped by a frangible, necked-down diameter capped by a suitable drive head for use with conventional hand or power drive tools. When the original stud has been damaged so as to preclude removal of a segment of it from the original stud hole, the stud hole is counterdrilled, enlarging its diameter and eliminating the broken segment. The larger threaded diameter of the snap-stud invention is set by the original stud's threaded diameter and the drill size predetermined for counterdrilling the original stud hole.
Claims1
A method for repairing the effects of a broken in-place stud or bolt by use of a dual diameter replacement stud comprising the steps of:
- (a) selecting a dual diameter replacement stud having its smaller diameter identical to that of the broken stud or bolt;
- (b) determining the counterdrill size and the tap for the larger diameter of said dual diameter stud was manufactured for making repairs where studs or bolts are broken in-place;
- (c) counterdrilling the stud or bolt hole containing the broken segment of the original stud or bolt using the size drill preselected for said purpose as determined in step (b);
- (d) retapping said counterdrilled hole using the size tap preselected for said purpose as determined in step (b);
- and
- (e) driving the larger threaded diameter of said dual diameter replacement stud into said counterdrilled, retapped hole so as to effect the necessary repair.
Dependencies are inferred from the claim text.