Electromagnetic door lock

Details Electromagnetic door lock Electromagnetic door lock

1994-08-29

1995-12-19

Cuomo, Peter M.

Locks

Operating mechanism

Using a powered device

70278, 70277, 70473, 70218, E05B 4700

Patent

active

054759960

ABSTRACT:
An electromagnetic door lock comprises generally a rectangular housing, a locking mechanism, a pair of electromagnetic components enclosed therein by a front cover and a rear cover. The front cover has a keypad and a transverse slot on an upper portion connected with an identification circuit therein. The electromagnetic component include an actuation assembly and a shift assembly, each having a movable rod opposed to each other. When a code is inputted via the keypad or the transverse slot, the identification circuit therein will transmit an electric current to the actuation assembly for and creating a magnetic field therein to disengageably force the movable rod of the shift assembly to move backward to unlock a door.

REFERENCES:
patent: 3336770 (1967-08-01), Parsons
patent: 4820330 (1989-04-01), Lin
patent: 4956984 (1990-09-01), Chi-Cheng
patent: 5018375 (1991-05-01), Tully
patent: 5083122 (1992-01-01), Clark

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