Method of displacing thread portion to produce lock thread

Claim 1

A METHOD OF FABRICATING FROM A STANDARD POLYGONAL NUT A SELF-LOCKING NUT ADAPTED TO BE THREADED UPON AND FROM A COMPLEMENTARY EXTERNALLY THREADED MEMBER WHEREIN SAID STANDARD NUT IS FORMED WITH A THREADED BORE HAVING AN UNINTERRUPTED CREST, A MINOR THREAD DIAMETER THAT IS SUBSTANTIALLY CONSTANT ALONG THE ENTIRE LENGTH OF THE THREADED PORTION OF THE BORE, AND A PITCH AND MAJOR DIAMETER THAT IS SUBSTANTIALLY CONSTANT OVER THE MAJOR PORTION OF THE LENGTH OF THE THREADED BORE PORTION, SAID METHOD COMPRISING THE STEPS OF INDENTING THE EXTERIOR OF SAID NUT AT A PLURALITY OF SYMMETRICALLY SPACED SIDE REGIONS BY APPLYING RADIALLY DIRECTED FORCES SUBSTANTIALLY OPPOSITE THE ROOT OF SAID THREADED BORE WHEREIN EACH FORCE IS APPLIED OVER A GRADUALLY INCREASING AREA OF SAID NUT AND WHEREIN THE DIMENSION OF THE AREA OF INITIAL INDENTING FORCE APPLICATION EXTENDING PARALLEL TO THE THREAD AXIS IS LESS THAN THE PITCH OF SAID THREADED BORE TO PROVIDE A RADIAL FORCE COMPONENT FOR FORMING A DISCRETE RADIALLY INWARDLY DISPLACED DISCONTINUITY ONLY IN THE MAJOR ROOT DIAMETER OF SAID THREADED BORE, AND TO PROVIDE AXIALLY DIRECTED FORCE COMPONENTS TO OPPOSITELY AXIALLY DISPLACE DISCRETE PORTIONS OF SAID THREAD CRESTS AT EACH SIDE OF THE INWARDLY DISPLACED ROOT PORTION AND ADJACENT THE POINT OF FORCE APPLICATION WITHOUT SUBSTANTIAL RADIAL DISPLACEMENT OF SAID CREST WHEREBY THE MINOR DIAMETER OF SAID THREADED BORE IS MAINTAINED SUBSTANTIALLY CONSTANT AND THE PITCH BETWEEN EACH DISPLACED ROOT PORTION AND ADJACENTLY DISPOSED AXIALLY DISPLACED CREST PORTIONS IS MADE GREATER THAN THE NORMAL STANDARD NUT THREAD PITCH.

Claim 2

A METHOD OF FABRICATING FROM A STANDARD POLYGONAL NUT A SELF-LOCKING NUT ADAPTED TO BE THREADED UPON AND FROM A COMPLEMENTARY EXTERNALLY THREADED MEMBER WHEREIN SAID STANDARD NUT IS FORMED WITH A THREADED BORE HAVING AN UNINTERRUPTED CREST, A MINOR THREAD DIAMETER THAT IS SUBSTANTIALLY CONSTANT ALONG THE ENTIRE LENGTH OF THE THREADED PORTION OF THE BORE, AND A PITCH AND MAJOR DIAMETER THAT IS SUBSTANTIALLY CONSTANT OVER THE MAJOR PORTION OF THE LENGTH OF THE THREADED BORE PORTION, SAID METHOD COMPRISING THE STEPS OF INDENTING THE EXTERIOR OF SAID NUT AT A PLURALITY OF SYMMETRICALLY SPACED SIDE REGIONS BY APPLYING RADIALLY DIRECTED FORCES SUBSTANTIALLY OPPOSITE THE ROOT OF SAID THREADED BORE WHEREIN EACH FORCE IS APPLIED OVER A GRADUALLY INCREASING AREA OF SAID NUT AND WHEREIN THE DIMENSION OF THE AREA OF INITIAL INDENTING FORCE APPLICATION EXTENDING PARALLEL TO THE THREAD AXIS IS LESS THAN THE PITCH OF SAID THREADED BORE TO PROVIDE A RADIAL FORCE COMPONENT FOR FORMING A DISCRETE RADIALLY INWARDLY DISPLACED DISCONTINUITY ONLY IN THE MAJOR ROOT DIAMETER OF SAID THREADED BORE, AND TO PROVIDE AXIALLY DIRECTED FORCE COMPONENTS TO OPPOSITELY AXIALLY DISPLACE DISCRETE PORTIONS OF SAID THREAD CRESTS AT EACH SIDE OF THE INWARDLY DISPLACED ROOT PORTION AND ADJACENT THE POINT OF FORCE APPLICATION WITHOUT SUBSTANTIAL RADIAL DISPLACEMENT OF SAID CREST WHEREBY THE MINOR DIAMETER OF SAID THREADED BORE IS MAINTAINED SUBSTANTIALLY CONSTANT AND THE PITCH BETWEEN EACH DISPLACED ROOT PORTION AND ADJACENTLY DISPOSED AXIALLY DISPLACED CREST PORTIONS IS MADE GREATER THAN THE NORMAL STANDARD NUT THREAD PITCH.