Paddle wheel retard feeder

Details Paddle wheel retard feeder Paddle wheel retard feeder

1980-11-03

1983-05-03

Stoner, Jr., Bruce H.

Sheet feeding or delivering

Feeding

Separator and conveyor

221251, 221259, 221260, 271120, 271122, B65H 306

Patent

active

043818609

ABSTRACT:
An apparatus for feeding individual substrates from the top of a stack of substrates upon demand includes a first paddle wheel mounted above the substrate stack and adapted to forward a substrate from the stack in a predetermined direction and a second paddle wheel downstream from the first paddle wheel that is adapted to continue movement of the substrate in the predetermined direction. A friction retard roller is positioned opposite to and forms a nip with the second paddle wheel in order to inhibit multi-feeding of substrates. A second embodiment includes a single paddle wheel that acts in combination with a high friction surfaced guide member to feed substrates individually from a stack.

REFERENCES:
patent: 311340 (1885-01-01), Loffelhardt
patent: 576116 (1897-02-01), Hansen
patent: 1167367 (1916-01-01), Wells
patent: 2953372 (1960-09-01), Williams et al.
patent: 3220605 (1965-11-01), Casey
patent: 3469834 (1969-09-01), Stange et al.
patent: 3630516 (1971-12-01), Hong
patent: 3690537 (1972-09-01), Turner et al.
patent: 4171129 (1979-10-01), Daley et al.

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