Apparatus for classifying objects according to their lengths

Details Apparatus for classifying objects according to their lengths Apparatus for classifying objects according to their lengths

1986-09-09

1988-07-05

Marbert, James B.

Classifying, separating, and assorting solids

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

Condition responsive means controls separating means

209586, 209628, 209686, 209905, B07C 506

Patent

active

047548819

ABSTRACT:
Apparatus for classifying elongated tablets, pills and similar objects according to their lengths has a rotary wheel-shaped conveyor with a peripheral groove which receives a succession of objects and advances them past a testing station where the objects are monitored by an optical reflection type detector which generates signals denoting the lengths of the objects. Such signals are used to expel by jets of compressed air those objects whose lengths are unsatisfactory ahead of the location where satisfactory objects leave the groove by gravity. The objects which approach and move past the testing station are attracted to the conveyor by suction.

REFERENCES:
patent: 3327850 (1967-06-01), Simmons
patent: 3455444 (1969-07-01), Simmons et al.
patent: 3618764 (1971-11-01), Bawduniak
patent: 3969227 (1976-07-01), Garris
patent: 4082189 (1978-04-01), Cordes
patent: 4379509 (1983-04-01), Bohle

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