Magnetically operated latch

Details Magnetically operated latch Magnetically operated latch

1990-02-05

1991-12-31

Nicholson, Eric K.

Closure fasteners

Magnetic

70276, 29234116, 292144, 292201, E05C 1756

Patent

active

050766236

ABSTRACT:
A magnetically operated latch includes one or two latching members, the or each member including a permanent magnet and being turnable or slidable between an engaging position and a disengaged position, and a further member of a magnetically soft material which attracts the magnet(s) to displace the latching member(s) into the engaging position(s). To disengage the latching member(s) a further magnet is brought to a position in which it acts repulsively on the permanent magnet(s) by way of the further member.

REFERENCES:
patent: 2797655 (1957-07-01), Morehouse
patent: 3408837 (1968-11-01), Felson
patent: 3605459 (1971-09-01), Van Dalen
patent: 3611763 (1971-10-01), Sedley
patent: 3837525 (1974-09-01), Kobayashi
patent: 3967479 (1976-07-01), Vick
patent: 4848812 (1989-07-01), Slaughter

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