Browse Prior Art Database

Device for Feeding Envelopes from Bottom of Moderate Stack

IP.com Disclosure Number: IPCOM000108587D
Original Publication Date: 1992-Jun-01
Included in the Prior Art Database: 2005-Mar-22
Document File: 1 page(s) / 25K

Publishing Venue

IBM

Related People

Brown, CG: AUTHOR

Abstract

Disclosed is a method for assisting a moderate stack of correspondence envelopes to be fed from the bottom of this stack, into a machine, such as an office printer. A stack of 125 such envelopes is about 3" to 4" in height and weighs near or over 1 pound.

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Device for Feeding Envelopes from Bottom of Moderate Stack

       Disclosed is a method for assisting a moderate stack of
correspondence envelopes to be fed from the bottom of this stack,
into a machine, such as an office printer.  A stack of 125 such
envelopes is about 3" to 4" in height and weighs near or over 1
pound.

      Usual devices can accommodate up to around 75 envelopes, before
the weight of such a stack causes sufficient retarding friction on
the bottom envelope to prevent the feeder from pulling that envelope
out from under all the weight of those above it.

      Via this disclosure, additional rollers are provided under the
bottom envelope, so that it cannot touch or drag against the fixed
bottom of the hopper.  If a very large stack of envelopes must be
fed, however, the friction (weight-dependent) between the bottom
envelope and the one just above it will override the benefit of these
extra rollers.