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US 4,544,150 AGranted
Document feeder
AssigneePitney Bowes Inc.
InventorsRobert Irvine, Harry E. Luperti, Keith Bayliss
Life of this patent
Estimating the term…
Abstract
An improvement in a document feeding device having a hopper oriented at an acute angle with respect to a horizontal plane and able to support a pack of documents to be fed seriatim therefrom. The improvement comprises at least one pad having a high coefficient of friction material situated on the upper surface of the hopper whereby the effect of the weight of the documents situated in the hopper above the pad on the pressure of the pack situated below the pad is decreased.
Claims4
A document feeding device, comprising:
- a hopper oriented at an acute angle with respect to a horizontal plane and able to support a pack of documents to be fed seriatim therefrom;
- at least one pad having a high coefficient of friction material situated on the upper surface of said hopper whereby the effect of the weight of the documents situated in the hopper above said pad on the pressure of the documents situated below said pad is decreased;
- and
- means for adjusting the amount of pad to be exposed, said means including an aperture adjacent said pad at the upstream end thereof and a slide having a downstream end extending through said aperture and over said pad.
1 more element
Dependencies are inferred from the claim text.