Electro-static sheet feeding method and apparatus

Details Electro-static sheet feeding method and apparatus Electro-static sheet feeding method and apparatus

1983-01-03

1985-07-02

Schacher, Richard A.

Sheet feeding or delivering

Feeding

Separators

271 35, 271128, 271193, B65H 316

Patent

active

045263574

ABSTRACT:
Apparatus and a method are disclosed that can be selectively operated with equal advantage to strip sheet material from either the top or the bottom of a stack. A translatable member having a generally planar surface formed of an electrically insulative material is disposed proximate to either the top or bottom of a stack of sheet material. A pair of electrodes in the form of an electronic grid is secured to the planar surface. A DC voltage is applied to the electrodes selectively to effect a highly intense electric field only close to the surface of the member. The intensity of the electric field can be varied in predetermined relation to the applied DC voltage so as to determine the number of sheets simultaneously removed from the stack. The electric field exerts an attractive force only on the end-most sheet or sheets of the stack so that said end-most sheet or sheets only will be stripped from the stack.

REFERENCES:
patent: 2627890 (1953-02-01), Lloyd

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