Magnet clasp

Details Magnet clasp Magnet clasp

1984-01-26

1985-03-19

Sakran, Victor N.

Buckles, buttons, clasps, etc.

Having magnetic fastener

24 49M, 2922515, 335236, A44B 1700, E05C 1756

Patent

active

045050074

ABSTRACT:
A magnet clasp a stationary part and a movable part, the stationary part including a permanent magnet, ferromagnetic plates secured to the permanent magnet, a ferromagnetic pillar and a non-magnetic case and cover which encase and cover the permanent magnet and associated parts, while the movable part has a ferromagnetic plug adapted to received by a central hole of the stationary part. The magnetic attracting force acts between the permanent magnet and the ferromagnetic plug to firmly hold the stationary and movable parts only when the ferromagnetic plug is placed in the central hole of the stationary part, whereas, when the ferromagnetic plug is placed on other portions of the stationary part, no substantial magnetic attracting force is exerted.

REFERENCES:
patent: 2812203 (1957-11-01), Scholten
patent: 2901278 (1959-08-01), Robinson
patent: 3009225 (1961-11-01), Budreck
patent: 3127653 (1964-04-01), Budreck
patent: 3277681 (1966-10-01), Bey
patent: 4021891 (1977-05-01), Morita
patent: 4200852 (1980-04-01), Aoki
patent: 4219062 (1980-08-01), Berkman
patent: 4265002 (1981-05-01), Hosken

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