Rotary noiseless detent switch

Details Rotary noiseless detent switch Rotary noiseless detent switch

1983-10-13

1986-12-09

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250231SE, 335272, G01D 534

Patent

active

046281991

ABSTRACT:
A noiseless rotary detent switch, wherein a ferromagnetic projection passes in close proximity to a magnetic pole, in combination with a first photoelectric detector for detecting the leading and trailing edges of said projection and a second photoelectric detector for detecting the presence or absence of said projection, the magnetic attraction between said projection and said pole providing the noiseless detent action and said first and said second photoelectric detectors providing electric signals for actuating switches in a sequence corresponding to that of the direction of rotation of said rotary switch.

REFERENCES:
patent: 3344378 (1967-09-01), Wilhelmson
patent: 3477047 (1969-11-01), Jeffery
patent: 3800204 (1974-03-01), Kenney
patent: 3995156 (1976-11-01), Angersbach et al.
patent: 4010464 (1977-03-01), Wires et al.
patent: 4054944 (1977-10-01), Lau
patent: 4146970 (1979-04-01), Edwards
patent: 4199741 (1980-04-01), Paulet
patent: 4326128 (1982-04-01), Klein
patent: 4334222 (1982-06-01), Kelley et al.
patent: 4353049 (1982-10-01), Lerner et al.
patent: 4375592 (1983-03-01), Cox

Affiliated with

Also associated with

Rating

Rotary noiseless detent switch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rotary noiseless detent switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary noiseless detent switch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1386582