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:
May. 12, 1987
Filed:
May. 13, 1985
William R Foshee, Indianapolis, IN (US);
Best Lock Corporation, Indianapolis, IN (US);
Abstract
A cabinet push lock has a key plug held by a retaining pin engaged in a circumferential groove in the key plug and mounted in a bore coplanar with the pin tumbler bores. The pin tumbler stacks are held in their bores by an elongated cap mounted in a groove closed at the front and extending across both the pin tumbler bores and the retaining pin bore. The cap is held against endwise movement, as by interlocking with the sides of the groove. The groove side walls are staked at spaced areas to releasably retain the cap, and other areas are reserved for subsequent restakings. The retaining pin bore, an aligned diametric bore in the key plug, and a bottom opening in the lock body provide a passage for transmission of thrust to drive a portion of the cap out of the groove to permit cap removal. The diametric bore in the key plug contains a drive pin to block the key slot, and a key stop ahead of the drive pin blocks an additional portion of the key slot. Cap-removing thrust is exerted by driving the drive pin against the retaining pin and thereby driving the retaining pin against the overlying portion of the cap. A capping tool is provided to control the swaging so as to permit repeated recappings and have easy and repeated recombinatings of the lock.