Switching device

Details Switching device Switching device

1988-03-03

1989-04-25

Goldberg, E. A.

Electricity: magnetically operated switches, magnets, and electr

Permanent magnet-actuated switches

340623, H01H 900

Patent

active

048251810

ABSTRACT:
A switching device comprising a reed switch of a normal open type turned on and off by a magnetic field, a fixed bias magnet located in an area where the switch operates stably, and a starting magnet located opposite to the fixed bias magnet with the switch interposed between them and capable of applying a magnetic field, reverse to that of the fixed bias magnet, to the switch. When the starting magnet is carried close to the switch, its a magnetic field overcomes that of the fixed bias magnet to control the switching-on and -off of the switch, and when it is carried remote from the swtich, the fixed bias magnet controls the switching-on and -off of the switch.

REFERENCES:
patent: 3448419 (1969-06-01), Myatt
patent: 3544934 (1969-05-01), Poliakoff
patent: 4107493 (1978-08-01), Nagara et al.
Shipbuilding & Engineering, vol. 18, No. 11/Nov. 1985.

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