Single switching of magnetic reed switch

Details Single switching of magnetic reed switch Single switching of magnetic reed switch

1995-10-31

1997-05-13

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Permanent magnet-actuated switches

335207, H01H 900

Patent

active

056296592

ABSTRACT:
A magnetic switching device utilizing a reed switch avoids multiple switching and provides greater movement between a magnet and a reed switch. The device has a reed switch switchable by a magnetic field with contact reeds extending longitudinally in a switching line, at one permanent bar magnet, and a path of movement for the magnet to move relative to the reed switch, the path of movement being parallel to the switching line of the reed switch and spaced apart a predetermined distance therefrom, the magnet being tilted at a predetermined angle to the switching line of the reed switch, the angle being sufficient to cause only a single switching action when movement occurs between the magnet and the reed switch in the path of movement, the switching action occurring when the approximate centre of the magnet substantially overlaps the contact reeds of the reed switch.

REFERENCES:
patent: 4084436 (1978-04-01), Smitherman
patent: 4627283 (1986-12-01), Nishida et al.
patent: 4788534 (1988-11-01), Engelhardt
patent: 5159305 (1992-10-01), Hutchinson
patent: 5233323 (1993-08-01), Burkett et al.
patent: 5299456 (1994-04-01), Steiner
patent: 5325078 (1994-06-01), Carothers

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