Ejector dwell controller for a sorting apparatus

Details Ejector dwell controller for a sorting apparatus Ejector dwell controller for a sorting apparatus

1978-05-05

1981-06-09

Rolla, Joseph J.

Classifying, separating, and assorting solids

Sorting special items, and certain methods and apparatus for...

Condition responsive means controls separating means

209581, 209644, 250226, 356407, B07C 5342

Patent

active

042719682

ABSTRACT:
A sorting apparatus for sorting a stream of articles and for ejecting unacceptably classified articles therefrom is characterized by an ejector dwell controller operative to control the duration of operation of an ejector element in accordance with the length of the article being ejected. The ejector is initiated when a predetermined lead-point on an article classified as unacceptable enters into an ejection zone proximal to the ejector and continues until a predetermined cut-off point thereon enters the ejection zone. An ejecting force is thus directed toward the same predetermined portion of each article being ejected without regard to the location of the defect causing the unacceptable classification.

REFERENCES:
patent: 3011634 (1961-12-01), Hutter et al.
patent: 3067873 (1962-12-01), Petts et al.
patent: 3242342 (1966-03-01), Gabar
patent: 3955678 (1976-05-01), Moyer
patent: 3975261 (1976-08-01), Beck

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