Anti-theft fastening device

Details Anti-theft fastening device Anti-theft fastening device

1985-04-08

1988-02-02

Frankfort, Charles

Buckles, buttons, clasps, etc.

Cord and rope holders

Pivoted part

292316, 24155BB, 24155R, A44B 918

Patent

active

047221194

ABSTRACT:
A fastening device which is of one piece construction of a ferromagnetic material, having in it formed a pair of jaws through which a fastening pin is inserted and tightly engaged from reverse travel due to the inward bias and angle of the jaws, thereby preventing unauthorized removal.
Removal of the pin is accomplished when the jaws are spread slightly due to a magnetic force attracting a formed upper end or loop and the resulting motion being transmitted through a riser to integral lever arms which through mechanical advantage flex the base thereby spreading the jaws apart.

REFERENCES:
patent: 3858280 (1975-01-01), Martens
patent: 3911534 (1975-10-01), Martens et al.
patent: 3947930 (1976-04-01), Martens
patent: 3995900 (1976-12-01), Humble et al.
patent: 4012813 (1977-03-01), Martens
patent: 4156302 (1979-05-01), Van Niel
patent: 4299870 (1981-11-01), Humble
patent: 4311992 (1982-01-01), De Chant
patent: 4380097 (1983-04-01), Keifer
patent: 4502717 (1985-03-01), Close

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