Knob cylinder lock

Details Knob cylinder lock Knob cylinder lock

1991-08-14

1992-11-10

Gall, Lloyd A.

Locks

Operating mechanism

Key

70375, 70379R, 70461, E05B 1704

Patent

active

051613972

ABSTRACT:
A retrofit knob cylinder has a cross-shaped slot on the rear of the cylinder plug and a cross-shaped opening through a plug retainer so that a number of different tail pieces may be assembled to the plug and extend through the opening and may be positioned either horizontally or vertically depending on which portion of the cross slot they are assembled in.

REFERENCES:
patent: Re31910 (1985-06-01), Oliver
patent: 883857 (1908-04-01), Caley et al.
patent: 1143610 (1915-06-01), Carr
patent: 1384392 (1921-07-01), Laski
patent: 2014233 (1935-09-01), Keil
patent: 2135322 (1938-11-01), Brantingson
patent: 2213262 (1940-09-01), Segal
patent: 2948140 (1960-08-01), Etsten
patent: 3083561 (1963-04-01), Sussina

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