Thermal reed switch assembly

Details Thermal reed switch assembly Thermal reed switch assembly

1986-02-06

1987-10-27

Grimley, Arthur T.

Electricity: magnetically operated switches, magnets, and electr

Permanent magnet-actuated switches

Thermomagnetic

335217, H01F 2730

Patent

active

047032960

ABSTRACT:
A thermal reed switch assembly including two magnetic reed switches having two permanent magnets and at least two semicylindrical thermal magnetic members each having mutually different magnetic tansition points sandwiching the reed switch therebetween. An inner diameter of one thermal magnetic member may be larger than at least a second member therein increasing the sectional area ratio of the members.

REFERENCES:
patent: 2877315 (1959-03-01), Oliver
patent: 3663913 (1972-05-01), Kato et al.
patent: 3895328 (1975-07-01), Kato et al.
patent: 3947794 (1976-03-01), Newcomb
patent: 4320370 (1982-03-01), Itou et al.
patent: 4325042 (1982-04-01), Endo et al.
patent: 4389628 (1983-06-01), Sato et al.
patent: 4509029 (1985-04-01), Bradley

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