Top vacuum corrugation feeder with aerodynamic drag separation

Details Top vacuum corrugation feeder with aerodynamic drag separation Top vacuum corrugation feeder with aerodynamic drag separation

1990-06-21

1991-10-01

Schacher, Richard A.

Sheet feeding or delivering

Feeding

Separators

271 94, B65H 314

Patent

active

050526758

ABSTRACT:
A top vacuum corrugation feeder employs a vacuum feedhead working in conjunction with an air knife to feed sheets from the top of a stack. The air knife employs a thick boundary layer of air at a low pressure to suspend and separate the sheets by aerodynamic drag, resulting in about a 50% reduction in the required power for operation of conventional top vacuum corrugation feeders.

REFERENCES:
patent: 3424453 (1969-01-01), Halbert
patent: 4306684 (1981-12-01), Peterson
patent: 4451028 (1984-05-01), Holmes et al.
patent: 4596385 (1986-06-01), Silverberg
patent: 4627605 (1986-12-01), Roller
patent: 4699369 (1987-10-01), Zirilli

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