Lock having removable lock-actuator cartridge

Details Lock having removable lock-actuator cartridge Lock having removable lock-actuator cartridge

1992-05-04

1994-01-18

Cuomo, Peter M.

Locks

Operating mechanism

Key

70371, 70407, 70369, 70377, E05B 2900

Patent

active

052791386

ABSTRACT:
A key-operated lock has a shell mounted securely in a closure, and a removable lock-actuator cartridge insertable into and withdrawal from the shell to facilitate changing the tumbler disk combination in the lock. The cartridge includes an annular hollow housing seatable in the shell, and a tumbler disk carrier telescopically insertable into the housing. The carrier and associated tumbler disks are rotatable within the housing to operate the lock. An anti-damage feature comprises the cartridge being insertable into the open front end of the shell. A thickened rear wall of the shell reinforces the cartridge against destructive attack by rod and hammer action exerted on the front face of the lock. Principal features are quick changing of the tumbler disk pattern, and a rigid damage-resistant lock structure.

REFERENCES:
patent: 1644365 (1927-10-01), Bennett
patent: 2012996 (1935-09-01), Jacobi
patent: 3600912 (1971-08-01), Foreman
patent: 3789638 (1974-02-01), Roberts et al.
patent: 3797290 (1974-03-01), Taylor
patent: 3821886 (1974-07-01), Ladewig
patent: 3942346 (1976-03-01), Luotolainen
patent: 4123926 (1978-11-01), Elder
patent: 4838055 (1989-06-01), Gallagher

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