Universal lock plug

Details Universal lock plug Universal lock plug

1984-06-08

1986-11-04

Wolfe, Robert L.

Locks

Parts, attachments, accessories and adjuncts

70447, 70375, E05B 1700

Patent

active

046204300

ABSTRACT:
A lock assembly of the type including a shell that receives a core having key-operated tumblers that coact with grooves in the shell. A plug having no tumblers replaces the core. The plug is insertable into the shell and pivotable about an axis within the shell and is retained within the shell.

REFERENCES:
patent: 256723 (1882-04-01), Mix
patent: 315307 (1885-04-01), Ludlow
patent: 1136141 (1915-04-01), Kelley
patent: 2460709 (1949-02-01), Navarro
patent: 3089329 (1963-05-01), Kerr
patent: 3589152 (1971-06-01), Glass
patent: 3793857 (1974-02-01), Schlage
patent: 4094176 (1978-06-01), Hughes
patent: 4228873 (1980-10-01), Nyborg
patent: 4398405 (1983-08-01), Patriquin

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