Magnetic detent action for switches

Details Magnetic detent action for switches Magnetic detent action for switches

2005-07-26

2005-07-26

Donovan, Lincoln (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Permanent magnet-actuated switches

Plural magnets

C200S404000

Reexamination Certificate

active

06922123

ABSTRACT:
The present invention involves a magnetic detent action device for switches utilizes the magnetic field interaction of a pair of magnetic members each having a side-by-side multipole magnetic pattern. One magnetic member is fixed relative to a switch body, while the other magnetic member is attached to a switch actuator. The magnetic members have a repeating pattern of north, south, and nonmagnetic portions. The switch body holds the two magnetic members in contact or in closely parallel proximity, and, as the switch actuator is moved, the two magnetic members and their respective magnetic poles move relative to each other creating a switch detent action as the magnetic fields of alike and opposite poles of the two magnetic members pass through each other. The magnetic detent action may be implemented in slide, rotary, or other switches.

REFERENCES:
patent: 3114809 (1963-12-01), Benson
patent: 3209097 (1965-09-01), Shlesinger, Jr.
patent: 4027278 (1977-05-01), Giannini
patent: 4054944 (1977-10-01), Lau
patent: 4068202 (1978-01-01), Lyons, III
patent: 5180050 (1993-01-01), Rada et al.
patent: 5537893 (1996-07-01), Snider
patent: 5623854 (1997-04-01), Snider

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