Reed switch device

Details Reed switch device Reed switch device

1988-02-02

1989-06-06

Goldberg, E. A.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Vacuum or hermetically sealed type

335205, H01H 900

Patent

active

048375373

ABSTRACT:
A reed switch device comprises a pair of magnets such as bar magnets or ring-shaped magnets which are arranged in inverted polar orientations such that they produce magnetic fields acting in opposite directions, and a reed switch which is movable relative to the pair of magnets such that the longitudinal axis of the reed switch is maintained substantially in parallel with the axes of magnetization of the magnets. The relative position between the reed switch and the magnets is detected through activation of the reed switch between on and off states caused in response to a change in the relative position between the pair of magnets and the reed switch.

REFERENCES:
patent: 3205323 (1965-09-01), Deshautreaux
patent: 3895328 (1975-07-01), Kato et al.
patent: 3896281 (1975-07-01), Feoutistov

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