Device for detecting the presence of products in related seats a

Details Device for detecting the presence of products in related seats a Device for detecting the presence of products in related seats a

1987-11-30

1989-07-11

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

G01N 904

Patent

active

048474878

ABSTRACT:
A device and method for detecting the presence of products in related seats and any irregularities in the base section of the products. The device includes a row of radiation emitters and a row of receivers. A belt with transverse rows of seats each containing products is moved between the emitters and receivers. The receivers detect any radiation which passes through the seats unshadowed by the products. Since the base section of whole and unbroken products should completely shadow the receivers, any break or missing portion of the base section is detected when radiation reaches the receiver. Cone-shaped conveyors are provided to convey radiation to the receivers so as to reduce the required size of the receivers.

REFERENCES:
patent: 3980180 (1976-09-01), Jamieson
patent: 4245243 (1981-01-01), Gutjahr et al.
patent: 4384303 (1983-05-01), Brenke et al.
patent: 4399367 (1983-08-01), Grube et al.
patent: 4472922 (1984-09-01), Romagnoli

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