System for sorting elongated members

Details System for sorting elongated members System for sorting elongated members

1979-02-28

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

209586, 209698, 250223R, 250560, 356383, 356384, B07C 504

Patent

active

042719674

ABSTRACT:
A system of sorting elongated pieces such as asparagus, wherein each of the elongated pieces are successively conveyed by a conveyer and detected as a still image by a sensor such as a TV camera. In processing a signal representative of the still image a stem diameter of the piece and a ratio of the spike maximum diameter of the piece to the stem diameter are obtained as sorting out factors by calculation. When the calculation values of the sorting out factors satisfy predetermined reference values, the piece is further sorted out according to size. The stem diameter is measured at a position which is spaced from the cut end of the stem by a predetermined dimension toward the spike thereof.

REFERENCES:
patent: 3089594 (1963-05-01), Early
patent: 3224322 (1965-12-01), Westbrook
patent: 3774040 (1973-11-01), Stephanos
patent: 3977524 (1976-08-01), Boots
patent: 4146134 (1979-03-01), Keen et al.

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