Title: Electro-optical counting device for counting products arranged in shingle-like fashion

Abstract: Disclosed is an electro-optical system for counting moving articles utilizing a light emitting source and the light receiving device so arranged relative to one another that the path of light emitted by the light emitting device forms a detectable spot on the surface of the article to be counted, detectable along a fixed detection path by the light receiving device but undetectable when that spot becomes dislocated from the original position.

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Inventors: Rappaport, Edgar (Maywood, NJ, US)

Application Number: 604266
Filing Date: 1975-08-13
Publication_date: 1977-05-31
Assignee:
Primary Class(es): 250/222.1 250/222.2, 250/223R, 250/239, 250/559.4
Other Classes:
US Patent Ref:

3382368	May, 1968	Conner et al.	250/561.
3414732	Dec, 1968	Stegenga	250/222.
3415350	Dec, 1968	Murphy	250/223.
3508067	Apr, 1970	Urbasch et al.	250/222.
3586866	Jun, 1971	Kawata	250/222.
3882316	May, 1975	Garris	250/560.
3902713	Sep, 1975	Von Luhmann et al.	250/561.

Other Refs:
Primary Examiner: Nelms, David C.
Assistant Examiner:
Attorney: