Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1990-03-23
1991-11-19
Willis, Davis L.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250239, G01D 534
Patent
active
050668560
ABSTRACT:
This invention provides an optical micro-switch, and a method of mass-producing such optical micro-switches. The optical micro-switch comprises a first housing half containing electronic circuitry which generates light and a second housing half containing electronic circuitry which senses light, the electronic circuitry is separated by a plunger with an aperture and a slide with two apertures. The plunger and slide are positioned in the light transmission path between the light-emitting circuitry and the light sensing circuitry. The optical micro-switch has an input prong, output prong, and a ground prong. The slide can be moved into either of two different positions which configures the switch as a normally open switch or a normally closed switch. In mass-producing these optical micro-switches, a continuous tape lead frame is provided. This continuous tape lead frame contains duplicate sets of frame portions for the first housing half and a second housing half of each optical micro-switch produced. The housing halves are molded around their respective frame portions, and the components of the optical micro-switch are assembled into the housing halves. The lead frame is folded to engage the housing halves and seal the components therein, completing the manufacture of the optical micro-switch.
REFERENCES:
patent: 3336482 (1967-08-01), Mierendorf et al.
patent: 3465099 (1969-09-01), Harris
patent: 3628037 (1971-12-01), Yamamoto et al.
patent: 3668407 (1972-06-01), Matzen et al.
patent: 3768158 (1973-10-01), Little et al.
patent: 3898454 (1975-08-01), Friday et al.
patent: 3949219 (1976-04-01), Crouse
patent: 4172218 (1979-10-01), Sugisaka
patent: 4196348 (1980-04-01), Iwakiri et al.
patent: 4278965 (1981-07-01), Nelson et al.
patent: 4442425 (1984-04-01), Eibner
patent: 4690484 (1987-09-01), Oba et al.
patent: 4764645 (1988-08-01), Takasawa
patent: 4816671 (1989-03-01), Umemura
Messinger Michael
Optoswitch, Inc.
Willis Davis L.
LandOfFree
Optical micro-switch apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical micro-switch apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical micro-switch apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1372083