Tamper resistant magnetic gate lock

Closure fasteners – Magnetic

Patent

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Details

292DIG53, 335294, E05C 1916

Patent

active

051141957

ABSTRACT:
An apparatus for locking doors and gates is disclosed. The apparatus generally comprises a housing containing a permanent magnet and an electromagnet for locking and unlocking the door or gate and contact means on the door or gate for engaging the permanent magnet in order to lock the door or gate. The electromagnet, when energized, has a magnetic field opposing the magnetic field of the permanent magnet to magnetically disengage the permanent magnet from the contact means.

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patent: 4696500 (1987-09-01), Zunkel
patent: 4703962 (1987-11-01), Kelly et al.
patent: 4991887 (1991-02-01), Hahn

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