Feeding apparatus

Sheet feeding or delivering – Feeding – Separators

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Details

271104, 271107, 271108, 271138, 271144, B65H 308

Patent

active

055382355

ABSTRACT:
An apparatus which uses vacuum to singly feed pieces from a stack. The feeding apparatus has a plate supporting a bottom of the stack and defining a plurality of plate apertures. The plate is connected to a drive mechanism which moves the plate between rearward and forward positions. The plate apertures are in fluid communication with a first vacuum source which provides a vacuum to the plate apertures. When the drive mechanism moves the plate from the rearward to the forward position, the vacuum source provides a vacuum to the plate apertures for holding a bottom-most piece of the stack against the plate. As the bottom-most piece of the stack is moved forward, a metering member prevents other pieces of the stack from being moved along with the bottom-most piece.

REFERENCES:
patent: 3105681 (1963-10-01), Bishop et al.
patent: 3226108 (1965-12-01), Bishop
patent: 3279788 (1966-10-01), Shields
patent: 3285602 (1966-11-01), Hartel
patent: 3588095 (1971-06-01), Ward et al.
patent: 3874655 (1975-04-01), Allen et al.
patent: 3904190 (1975-09-01), Kuehn
patent: 3908983 (1975-09-01), Long
patent: 3973768 (1976-08-01), Shannon
patent: 4008889 (1977-02-01), Ayres
patent: 4009876 (1977-03-01), Smiltneek
patent: 4651983 (1987-03-01), Long
patent: 4903600 (1990-02-01), Long
patent: 5074432 (1991-12-01), MacNamara
patent: 5129641 (1992-07-01), Long

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