Vacuum document feeder

Details Vacuum document feeder Vacuum document feeder

1980-05-12

1982-08-31

Stoner, Jr., Bruce H.

Sheet feeding or delivering

Feeding

Separator and conveyor

271 30A, 271 95, 271104, 271107, B65H 308, B65H 102

Patent

active

043468764

ABSTRACT:
A new and improved vacuum document feeder provides a vacuum cup support mechanism which follows a somewhat crescent-shaped coupler curve that eliminated the vacuum cup wear-producing disadvantages of the prior art and provides for increased feeding rates. A four-bar system moves a table over the somewhat crescent-shaped coupler curve, while at all times holding an edge of the table parallel to the documents. At least one vacuum cup is pivotally mounted on the table, to sweep over an angle which accommodates leaning documents. Cams on a drive pulley associated with the transport system coordinates the table movement with both the pivoting and vacuumizing of the cups.

REFERENCES:
patent: 1625085 (1927-04-01), Leach
patent: 2761680 (1956-09-01), Lens
patent: 3053530 (1962-09-01), Peeters
patent: 3079147 (1963-02-01), Childs
patent: 3313537 (1967-04-01), Garwood
patent: 3893392 (1975-07-01), Brenn et al.

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