Downhill bottom vacuum corrugated feeder and method

Details Downhill bottom vacuum corrugated feeder and method Downhill bottom vacuum corrugated feeder and method

1992-11-24

1993-10-26

Skaggs, H. Grant

Sheet feeding or delivering

Feeding

Separators

271 98, 271 99, 271104, 271236, 271165, 271167, 271 31, B65H 312

Patent

active

052559050

ABSTRACT:
A bottom vacuum corrugated feeder (BVCF) includes a tray for supporting a stack of documents. The tray is angled downhill relative to the feeding direction of the documents such that the leading edge of the stack is urged to a common stop member. The tray also includes a single side guide for aligning one side edge of the stack. A stack height sensor sends a signal corresponding to stack height to a controller which in turn controls voltage to be applied to a DC motor controlled blower based on a predetermined ratio of air flow pressure to stack pressure. The structure enables intermixed size document feeding in a BVCF.

REFERENCES:
patent: 3612511 (1971-10-01), Godlewski
patent: 4346879 (1982-08-01), Ruenzi
patent: 4469320 (1984-09-01), Wenthe
patent: 4566683 (1986-01-01), Moore
patent: 4606535 (1986-08-01), Larson
patent: 5069436 (1991-12-01), Lubberts
patent: 5071110 (1991-12-01), Arnone et al.
patent: 5083766 (1992-01-01), Osawa
patent: 5167407 (1992-12-01), Namba

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