Sheet feeding or delivering – Feeding – Separators
Patent
1975-03-03
1976-06-08
Blunk, Evon C.
Sheet feeding or delivering
Feeding
Separators
271 34, 271104, 271112, 271122, B65H 312
Patent
active
039617840
ABSTRACT:
Document transport apparatus in a document reader sorter is provided with a vacuum assisted friction feeder for picking documents one at a time from a document hopper and for advancing the documents at high speed along a document transport guideway to the control of a transport burst roller, the picking of the documents from the hopper by an apertured friction feed belt being assisted and facilitated by a low pressure vacuum directed upon a linearly disposed section thereof adjacent the hopper, and the high speed advancement of the documents into and along the document guideway to the control of the transport burst roller being assisted and facilitated by a high pressure vacuum directed upon a curvilinear section of the apertured belt cooperably disposed relative to the apertured circumference of a drive pulley, said high pressure vacuum being effective to lock the picked documents and particularly the leading edges thereof to the feed belt for an accelerated feeding thereof, said accelerated feeding of the documents into the document transport guideway in combination with the accelerated transmission of the documents therein by the transport burst roller resulting in maximized document throughput for the document reader sorter.
REFERENCES:
patent: 822661 (1906-06-01), Eschenbach
patent: 3131929 (1964-05-01), Rehm
patent: 3171647 (1965-03-01), Bishop
patent: 3260520 (1966-07-01), Sugden
Sevak Nitin M.
Su Chauchang
Blunk Evon C.
Burroughs Corporation
Peterson Kevin R.
Saifer Robert
Uren Edwin W.
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