Sheet feeding apparatus and valve therefor

Details Sheet feeding apparatus and valve therefor Sheet feeding apparatus and valve therefor

1983-07-13

1985-11-05

Schacher, Richard A.

Sheet feeding or delivering

Feeding

Separators

271108, B65H 314

Patent

active

045509034

ABSTRACT:
A document handler employing a vacuum belt feeder having an air knife to aid in sheet separation. The quantity of air discharged from the air knife is varied in accordance with the number of documents placed in the document handler as determined by counting the documents fed through the document handler during the initial feed cycle and actuating a valve having four flow settings: Off, Low, Medium, and High.

REFERENCES:
patent: 3761077 (1973-09-01), Vollrath
patent: 4184672 (1980-01-01), Watkins
patent: 4236710 (1980-12-01), Nakamura
patent: 4299381 (1981-11-01), Smith
patent: 4336928 (1982-06-01), Smith et al.
patent: 4362380 (1982-12-01), Dragstedt

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