Patent ID: 6264411
Filing Date: 2001-07-24
Classification: C07C,C07D,F16B,Y10S

Abstract:
A locking nut and bolt system comprising:a bolt having a bolt stem along an axial centerline and a bolt thread formed on said bolt stem, said bolt thread defining bolt thread crests and bolt thread troughs;a plurality of notches defined on said bolt thread generally longitudinally in a predetermined pattern with proximal notches being longitudinally adjacent each other on said bolt thread, each notch having a lock face and an opposing slope;a nut having a nut thread defined in an internal passageway and an end face, said nut thread being complementary to said bolt thread;a recess defined on said end face of said nut below said nut end face;at least one elongated locking unit formed as a cylinder with at least one tine protruding tangentially and radially inward toward said axial centerline, said locking unit having an axially rearward ring member disposed in said nut recess and said at least one locking unit protruding from said nut end face, said tine having a distal tine end adapted to latch on said lock face of said notch and a proximal tine portion adjacent said cylinder;said distal tine end moves radially inward when said distal tine end is disposed in one or more notches and moves radially outward when said distal tine end rides on said bolt thread crest, and said radially inward and outward movement being visible due to the disposition of said elongated locking unit on said end face of said nut, and said lock face of said notch preventing counter-rotational movement of said bolt with respect to said nut when said distal tine end abuts said lock face.