Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
Patent
1993-12-30
1995-08-01
Bidwell, James R.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Condition responsive means controls separating means
209722, 271260, 554595, B07C 500, B65H 712
Patent
active
054373751
ABSTRACT:
A method for on-the-fly detection and separation of multiple checks or like documents transported in a track, wherein the documents are first subjected to twin opposed vacuum forces from a suction source, to separate multiple documents; then a measuring and analysis of the resulting pressure differentials is taken within the vacuum-forming system; the system being provided with a cyclonic filter-separator upstream of the suction source, for removing and storing dust and debris entrained within the vacuum-forming air flow; the cyclonic filter-separator being designed to provide constant vacuum-forming airflow regardless of the nature or quantity of debris removed and collected; the system also being provided with a pressure sensor to give clear indication of the separated/unseparated state of the passing documents, and to exhibit a variable damping accessory.
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patent: 3516551 (1970-06-01), Wallen et al.
patent: 3589714 (1971-06-01), Staples, Jr. et al.
patent: 3773321 (1973-11-01), Burroughs
patent: 4572726 (1986-02-01), Van Abbema
patent: 4853010 (1989-08-01), Spence et al.
Chen Zhongtai
Keller Randy C.
Shell Ronald G.
Spall J. Michael
Bidwell James R.
McCormack John J.
Nguyen Tuan N.
Starr Mark T.
Unisys Corporation
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