Paperboard processing machine with vacuum transfer system

Details Paperboard processing machine with vacuum transfer system Paperboard processing machine with vacuum transfer system

1995-11-29

1997-07-29

Eickholt, Eugene H.

Printing

Rolling contact machines

Rotary

271 1008, 271 94, 271112, 271197, B41F 1324

Patent

active

056513135

ABSTRACT:
A paperboard processing machine is disclosed for printing and otherwise processing sheets of paperboard, such as corrugated container blanks, and in which the sheets are conveyed from one section of the machine to another section by one or more vacuum transfer systems. Each vacuum transfer system comprises an enclosure which is closed by a closure plate for creating a subatmospheric pressure, which pressure forces the sheets into frictional engagement with the reaches of a plurality of conveyor belts whereby the sheets are transported without contact of the opposite side of the sheet not contacted by the conveyor reach.

REFERENCES:
patent: 3034784 (1962-05-01), Lopez
patent: 3649002 (1972-03-01), Burkhardt
patent: 3684081 (1972-08-01), Matsuo
patent: 4831419 (1989-05-01), Iaia, Jr. et al.
patent: 5048812 (1991-09-01), Holmes
patent: 5383392 (1995-01-01), Kowalewski et al.
patent: 5392107 (1995-02-01), Paxon et al.
patent: 5464202 (1995-11-01), Capedoseq

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