George A Ward

US Patent:

49173685, Apr 17, 1990

Filed:

Mar 16, 1989

Appl. No.:

7/324036

Inventors:

Theodore J. LaBelle - Dorchester MA
Kenneth A. McAuley - Boston MA
George P. Ward - Danvers MA

Assignee:

Polaroid Corporation - Cambridge MA

International Classification:

B65H 330

US Classification:

271 21

Abstract:

A sheet feeding method and apparatus particularly suited to handling plastic sheets having a tendency to adhere to each other under electrostatic action, in which the uppermost sheet of a stack is fed by first lifting the rear edge of the sheet into a generally arcuate configuration and translating a lifting member forwardly under the lifted rear edge to progressively separate the uppermost sheet from the rest of the stack. The lifting members preferably in the form of an idler roller which translates to a position in cooperation with a drive roller so that the sheet becomes sandwiched between the tow rollers for final feeding from the stack. The mechanism features a pick assembly particularly suited for engaging and lifting the rear edge of each sheet into a predictable arcuate configuration.

US Patent:

D2484510, Jul 11, 1978

Filed:

Dec 22, 1975

Appl. No.:

5/643449

Inventors:

Morris Simon Freed - Newton Centre MA
George Walter Ward - Framingham MA

Assignee:

Data General Corporation

International Classification:

D0903

US Classification:

D 9184