Anti-theft fastening device and tool for releasing same

Details Anti-theft fastening device and tool for releasing same Anti-theft fastening device and tool for releasing same

1975-04-14

1976-04-06

Griffin, Donald A.

Buckles, buttons, clasps, etc.

Cord and rope holders

Pivoted part

40 20R, A44B 900, A44B 138

Patent

active

039479307

ABSTRACT:
A fastening device for securing articles together, the device including releasably connected male and female components. The male component comprises a pin and the female component comprises a retaining insert positioned in a housing for releasably clamping the pin. When joined, the pin can not be separated from the retainer except by a special tool. The insert is of magnetic material, and an actuating tool including an electromagnet is employed to actuate the insert to permit removal of the pin. The housed insert is attached to a tag, with the tag being attached to the article which is to be sold. The tag houses an electrical circuit which activates an alarm if the tag is not properly removed at the checkout point by means of the special tool.

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patent: 3858280 (1975-01-01), Martens
patent: R24066 (1955-10-01), Brown
magnetic Lock Foils Snoopers, Popular Science, Feb. 1951, pp. 219-220.

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