Document separation/detection technique

Details Document separation/detection technique Document separation/detection technique

1995-05-26

1996-04-23

Bollinger, David H.

Sheet feeding or delivering

Feeding

With means to interrupt feeding

B65H 712

Patent

active

055096484

ABSTRACT:
A method for differentiating and separating multiple overlapped like documents from single like items, transported along track means, comprising: subjecting the documents to opposed vacuum forces from suction means to separate them at a separation-station; then determining whether the documents are single or multiple, by measuring and analyzing the resulting pressure differentials within the suction system; using a cyclonic filter for removing and storing dust and debris entrained within the suction-conducting airflow, the cyclonic filter and suction system being designed and adapted to provide a relatively constant vacuum-generating airflow regardless of the nature of quantity of debris removed; plus a pressure sensor for indicating whether one or several documents are passing.

REFERENCES:
patent: 2992822 (1961-07-01), Fraidenburgh
patent: 2994528 (1961-08-01), Hull et al.
patent: 3516551 (1970-06-01), Wallen et al.
patent: 3589714 (1971-06-01), Staples, Jr. et al.
patent: 3773321 (1973-11-01), Burroughs

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