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Title: Thread reconditioning tool
Abstract:
A tool for reconditioning or restoring the threads of externally threaded members, such as bolts, studs, and the like, includes, in one embodiment, a collet having a bore formed therethrough with a portion of the bore defining a guide surface, and a threading insert that includes thread cutting means. In order to recondition threads, the threading insert is selectively positioned along the longitudinal axis of the threaded member with the thread cutting means engaging the threads of the member. The collet is placed over the end of the member and positioned such that the threading insert is received within a socket formed in the collet thereby retaining the threading insert in place against the externally threaded member. Rotation of the tool relative to the threaded member causes the cutting means to recondition the threads. In one alternate embodiment, the cutting means are associated with the collet rather than with the threading insert.
Other info: Inventors: Nannen, William G. (Smethport, PA, US) Application Number: 901619 Filing Date: 1978-05-01 Publication_date: 1980-05-06 Assignee: Primary Class(es): 408/215 470/207 Other Classes: US Patent Ref:
Other Refs:
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