Magnetic proximity switch

Details Magnetic proximity switch Magnetic proximity switch

1987-05-11

1988-05-17

Goldberg, E. A.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Plural magnets or flux sources

335205, 335302, H01H 900

Patent

active

047453834

ABSTRACT:
A magnetically operated proximity device is provided with a pivotal armature formed as a hat in cross section with two L-shaped members, one being longer and greater in mass than the other. The horizontal leg of each L-shaped member is arranged such as to contact an electrical contact. The greater surface area of the L-shaped members enhance the sensitivity of the device, with the horizontal leg of each L-shaped member extending over a different pole face of a permanent magnet.

REFERENCES:
patent: 2793265 (1957-05-01), Crissinger
patent: 3121148 (1964-02-01), Wells et al.
patent: 3176096 (1965-03-01), Marcum
patent: 3295023 (1966-12-01), Peras
patent: 3325756 (1967-06-01), Maxwell
patent: 3348176 (1967-10-01), Gullett
patent: 3361995 (1968-01-01), Marcum
patent: 3673527 (1972-06-01), Wolf
patent: 3732512 (1973-05-01), Puttick
patent: 3739309 (1973-06-01), Dalton
patent: 3832658 (1974-08-01), Hayden
patent: 4117431 (1978-09-01), Eicher
patent: 4225837 (1980-09-01), Fowler

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