F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
85/125
F16B 37/04 (2006.01) F16B 39/10 (2006.01)
Patent
CA 1220370
ABSTRACT OF THE DISCLSOURE This invention relates to a one-piece insert having a body portion formed integral with a lock ring portion, with an interconnecting strip extending between them. It is intended to be installed in a threaded bore of a workpiece as an insert or stud. The body portion has a threaded external surface to be screwed into a tapped hole in a workpiece, and an upper serrated portion with axially extending teeth. The lock ring portion has an external surface with radially extending teeth, and a cylindrical inner surface with radial grooves. Each of the grooves is substantially equal in length to and in continuous axial alignment with one of the teeth on the serrated portion of the body portion. The lock ring portion is axially displaced to engage the body portion when the strip is broken by a special installation tool. The internal grooves on the lock ring portion engage the external teeth on the serrated portion. The external teeth of the lock ring portion bite into the workpiece and assist in preventing rotation of the insert or stud in the workpiece.
429123
Huck Patents Inc.
Riches Mckenzie & Herbert Llp
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