Magnetic locking device

Details Magnetic locking device Magnetic locking device

1995-10-25

1997-02-11

Gall, Lloyd A.

Locks

Special application

For antitheft signaling device on protected article

247041, 70276, E05B 7300

Patent

active

056009771

ABSTRACT:
A locking device has a non-magnetic pin and a button, the non-magnetic pin having a base and a post projecting perpendicularly therefrom, extending to a free end, with an indented portion close to the free end. The button is an enclosed non-magnetic unit, having a hole at the lower surface adapted to receive the free end of the post, and also enclosing a plurality of locking plates each supported at an outer portion by a compressible support material, and adapted to retain the pin at the indented portion in a locked position within the button, but to rotate upwards and release the pin in response to a magnetic force directed at the upper surface of the button. The magnetic force can be applied by a magnet mounted within a protective shield adapted to fit over the button.

REFERENCES:
patent: 3638285 (1972-02-01), Sanchez Giraldez
patent: 4716922 (1988-01-01), Camp
patent: 4745664 (1988-05-01), Damvig
patent: 4884833 (1989-12-01), Pedersen

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