Sheet feeding apparatus

Details Sheet feeding apparatus Sheet feeding apparatus

1980-11-24

1982-09-07

Stoner, Jr., Bruce H.

Sheet feeding or delivering

Feeding

Separators

221258, 221259, 271 94, 271120, 271276, B65H 306, B65H 308

Patent

active

043480217

ABSTRACT:
Sheet feeding apparatus including a cylindrical tube mounted above a stack of documents for separating individual documents from the stack. The cylindrical tube houses a rotatably mounted shaft to which are secured a series of spaced beater and turbine blades respectively. The cylindrical tube defines a series of apertures along its bottom surface which are aligned with the beater blades and allow the beater blades to extend outwardly into contact with a separated sheet. At one end of this cylindrical tube is coupled a vacuum source which when energized rotates the turbine blades and reduces the pressure inside the tube. Accordingly, a single sheet is first separated from the top of the stack by attraction toward the reduced pressure inside the tube and once separated is driven away from the stack by the beater blades mounted to the rotating shaft.

REFERENCES:
patent: 3403904 (1968-10-01), Kim
patent: 3630516 (1971-12-01), Hong
patent: 3998449 (1976-12-01), Hornung
patent: 4043549 (1977-08-01), Rinehart
patent: 4121819 (1978-10-01), DiFrancesco et al.
patent: 4127263 (1978-11-01), Wenthe

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