Four roll inverter

Details Four roll inverter Four roll inverter

1988-10-17

1991-01-22

Kashnikow, Andres

Sheet feeding or delivering

Delivering

Multiple discharge

271303, 271186, 271219, 271902, B65H 2960

Patent

active

049865293

ABSTRACT:
A tri-directional inverter for use in machines requiring copy sheet inversion for collated copy set output uses four rollers forming three sheet-feeding nips. All sheets enter the center nip and contact a diverter gate that urges them in either of two directions. The sheets are corrugated by corrugating rollers as they enter a spring loaded inversion channel. The spring and corrugation rollers urge the sheets back out of the inversion channel into engagement with either of the selected other nips formed by the four rollers for feeding back into the machine for further processing.

REFERENCES:
patent: 2484196 (1949-10-01), Turrall et al.
patent: 4078789 (1978-03-01), Kittredge
patent: 4238126 (1980-12-01), Langdon
patent: 4277061 (1981-07-01), Nagel et al.
patent: 4359217 (1982-11-01), Roller et al.
patent: 4385825 (1983-05-01), Kaneko
patent: 4441704 (1984-04-01), Uchida et al.
patent: 4487506 (1984-12-01), Repp
patent: 4512255 (1985-04-01), Crist
patent: 4673176 (1987-06-01), Schenk
patent: 4699367 (1987-10-01), Russel
patent: 4735409 (1988-04-01), Brown
IBM Technical Disclosure Bulletin, P. S. Bach, "Sheet Inverter", vol. 18, No. 3, Aug. 1975, pp. 628 and 629.
Xerox Disclosure Journal, George J. Roller, "Constant Force Spring Inverter", vol. 8, No. 2, Mar./Apr., 1983, p. 101.

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