Magnetic proximity device

Details Magnetic proximity device Magnetic proximity device

1977-06-13

1978-09-26

Broome, Harold

Electricity: magnetically operated switches, magnets, and electr

Permanent magnet-actuated switches

Plural magnets

335306, H01H 3600

Patent

active

041174313

ABSTRACT:
A proximity device comprises a pair of connected magnets that are movable with respect to a magnetizable member located intermediate the magnets and secured in a housing. The magnets are arranged to provide a high rate of change of force between the magnets and the member as the magnets are moved by the approach or retreat of a magnetizable operator to or from an area adjacent one of the magnets and remote from the magnetizable member between the magnets.

REFERENCES:
patent: 3673527 (1972-06-01), Wolf
patent: 3732512 (1973-05-01), Puttick
patent: 4027278 (1977-05-01), Giannini

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