Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1978-03-13
1980-04-01
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
340365P, G01D 534
Patent
active
041963482
ABSTRACT:
A contactless switch which comprises a paired light-emitting diode and photoelectric transistor and a shutter means for temporarily blocking light passing from the diode to the transistor. A method for the production of this switch is also described. The above diode and transistor are mounted on terminal members stamped in a metal strip, which terminal members are connected by webs as molded but trimmed off from each other in assembling. The terminal members are embedded at least partially in a switch base made of plastic material and bent to bring said diode and transistor in confronting relation. The snap action means is associated with an actuator.
REFERENCES:
patent: 3189703 (1965-06-01), Chapin et al.
patent: 3263306 (1966-08-01), Chapin et al.
patent: 3628037 (1971-12-01), Yamamoto et al.
patent: 3660669 (1972-05-01), Grenon
patent: 3842263 (1974-10-01), Kornrumpf et al.
patent: 4047045 (1977-09-01), Paxton, Jr. et al.
Iwakiri Norio
Kiyono Yasuhiro
Nelms David C.
Omron Tateisi Electronics Co.
Westin Edward P.
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