Grooved vacuum belt document handling system

Details Grooved vacuum belt document handling system Grooved vacuum belt document handling system

1980-01-10

1981-11-03

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Detailed holder for original

226 95, 271276, G03B 2762, G03B 2764

Patent

active

042982774

ABSTRACT:
In a document handling apparatus for moving successive individual document sheets on the imaging surface of a movable vacuum belt into a copier imaging station, the vacuum belt has all its vacuum apertures limited to minor areas of the belt underlying the smallest document to be copied to avoid being exposed for imaging, but these apertures are pneumatically connected to a pattern of elongated airflow restrictive vacuum grooves which extend unapertured under and beyond the document edge over a much greater area of the belt surface. The grooves provide document vacuum retention in the unapertured belt areas from vacuum apertures opening recessed in selected minor areas of the grooves, and with reduced airflow requirements. These grooves have gently sloped walls and are otherwise designed to avoid reproducible shadows even where exposed.

REFERENCES:
patent: 3123354 (1964-03-01), Ungerer
patent: 3425610 (1969-02-01), Stewart
patent: 3452982 (1969-07-01), Bischoff
patent: 3477558 (1969-11-01), Fleischauer
patent: 3583614 (1971-06-01), Foster, Jr.
patent: 3677643 (1972-07-01), Sagawa
patent: 3730623 (1973-05-01), Jordan
patent: 3863912 (1975-02-01), Korff
patent: 3910570 (1975-10-01), Bleau
patent: 4008956 (1977-02-01), Stemmle
patent: 4043665 (1977-08-01), Caldwell
patent: 4047812 (1977-09-01), Hogan

Affiliated with

Also associated with

Rating

Grooved vacuum belt document handling system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1062172