The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 25, 1986
Filed:
Aug. 30, 1983
Clyde R Porter, Los Angeles, CA (US);
P. L. Porter Company, Woodland Hills, CA (US);
Abstract
An infinitely positionable mechanical lock having a housing and at least one bushing fixed to the housing, the bushing having an inclined spring abutment surface. A rod is axially slidable through the bushing relative to the housing. A coil spring is wound about the rod, the spring having a normal inner diameter smaller than the diameter of the rod such that the coil spring grips the rod against translational motion within the housing. The spring is prebiased against the inclined surface of the bushing into normal locking engagement with the rod absent an axial load on the rod relative to the housing. A release assembly is actuatable for partly unwinding the coil spring to thereby release the rod for movement relative to the housing.