Vacuum document feeder

Details Vacuum document feeder Vacuum document feeder

1980-08-04

1983-05-10

Stoner, Jr., Bruce H.

Sheet feeding or delivering

Feeding

Separator and conveyor

271 93, 271 98, 271103, 271104, 271108, B65H 308, B65H 312

Patent

active

043825931

ABSTRACT:
An automatic vacuum document feeder particularly adapted for feeding sheet-like documents in seriatim from a stack onto a utilization device, such as the document platen of a convenience copier. The documents are disposed in a tray. A vacuum lifter descends and lifts the topmost document along a vertical path to a position above the stack and beyond the bottom surface of a vacuum transport. The vacuum transport is disposed in a plane perpendicular to the vertical path of the vacuum lifter. The vacuum transport strips the document from the vacuum lifter and transports the document to the utilization device. The entire system is configured so that there is no relative motion occurring between the document being transported and the transport hardware. A document restraint device, including air jets and stripper fingers, coact with the stack to eliminate double feed.

REFERENCES:
patent: 900782 (1908-10-01), Richards
patent: 1853781 (1932-04-01), Rider
patent: 1861605 (1932-06-01), Maass
patent: 2085612 (1937-06-01), Spiess
patent: 2374578 (1945-04-01), Bernard et al.
patent: 2497849 (1950-02-01), Aberle
patent: 3035685 (1962-05-01), Raynor
patent: 3404789 (1968-10-01), Georgeff et al.
patent: 3584866 (1971-06-01), Ross et al.
patent: 3614089 (1971-10-01), Van Auken et al.
patent: 3627308 (1971-12-01), Stoever
patent: 3635464 (1972-01-01), Gramlich
patent: 3884368 (1975-05-01), Ballard
patent: 3977672 (1976-08-01), Godlewski
patent: 3990696 (1976-11-01), Landa
patent: 4027872 (1977-06-01), Bueker
patent: 4173335 (1979-11-01), Janecek et al.
patent: 4203585 (1980-05-01), Kunz et al.
Brooke, E. R. et al., "Sheet Separator With Belt Transport", Xerox Disclosure Journal, vol. 4, No. 1, Jan./Feb. 1979, pp. 55-56.

Affiliated with

Also associated with

Rating

Vacuum document feeder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vacuum document feeder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vacuum document feeder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-523694