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Class Information
Number: 271/197
Name: Sheet feeding or delivering > Delivering > By pneumatic conveyor > Unidirectionally-moving suction member or surface > Including endless-belt conveyor and suction chamber
Description: Device wherein the surface is that of a closed-loop band which encircles two or more pulleys and moves adjacent a vacuum box that connects with a source of the vacuum that is applied to the surface of the band.










Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
5974683 Sheet inspection apparatus for sheet-fed offset printing press Nov. 2, 1999
5967510 Sheet transfer system Oct. 19, 1999
5951007 Device for conveying a shingled or imbricated stream of sheets Sep. 14, 1999
5921544 Acquisition levitation transport device Jul. 13, 1999
5904465 Stacker with discharge control May. 18, 1999
5833231 Apparatus for controlling the transfer of sheet layers Nov. 10, 1998
5829740 Device for the temporary guidance of successively transported sheets Nov. 3, 1998
5810350 Suction tape conveyor table Sep. 22, 1998
5797598 Method for shingling and stacking conveyed sheet material Aug. 25, 1998
5797321 Paper guide apparatus for sheet-fed offset printing press Aug. 25, 1998
5797597 Automatic document conveying device Aug. 25, 1998
5779236 Vacuum hold down conveyor system with reduced net downward force on a belt Jul. 14, 1998
5749039 Collapsible air plenum May. 5, 1998
5730440 Suction feeder Mar. 24, 1998
5697606 Device for adapting negative pressure in a suction belt feed table of a sheet feeder to varying operating conditions Dec. 16, 1997
5676362 Vacuum-type transport device for printing units for packaging cardboard sheets Oct. 14, 1997
5671920 High speed printed sheet stacking and registration system Sep. 30, 1997
5664773 Strip conveyor and stacker Sep. 9, 1997
5651313 Paperboard processing machine with vacuum transfer system Jul. 29, 1997
5649483 Device for the automatic singling-out of sheets in the delivery of a sheet-fed rotary printing press Jul. 22, 1997
5636833 Apparatus for the underlap imbricated feeding of sheet-like printing substates to a printing machine and method Jun. 10, 1997
5611529 Device for stream feeding sheets onto a stack Mar. 18, 1997
5608511 Vacuum transport apparatus Mar. 4, 1997
5600906 Automatic suction type transfer of limp material on conveyors Feb. 11, 1997
5564693 Paperboard processing machine with vacuum transfer system Oct. 15, 1996
5548388 Vacuum transport apparatus Aug. 20, 1996
5531313 Device for conveying a continuous shingled sheet stream Jul. 2, 1996
5526105 Articulated vacuum transport apparatus Jun. 11, 1996
5522693 Process and apparatus for stacking sheets, such as plates, leaves and foils Jun. 4, 1996
5469955 Depositing apparatus for laundry Nov. 28, 1995
5467180 High air flow low pressure prefuser transport Nov. 14, 1995
5461467 Controlled air flow in a prefuser transport Oct. 24, 1995
5447303 Sheet inverter apparatus Sep. 5, 1995
5445369 Method of and apparatus for moving documents Aug. 29, 1995
5427368 Sheet-like article sort-out apparatus Jun. 27, 1995
5419677 Apparatus and method for programmable interleaving and stacking of sheet-carried food products May. 30, 1995
5390911 Device for conveying sheets from a printing press to a sheet pile Feb. 21, 1995
5392107 Shield for a sheet transport system Feb. 21, 1995
5374044 Vacuum drum document handling system for an insertion device Dec. 20, 1994
5358234 Conveyor device for changing the direction of sheets of wrapping material Oct. 25, 1994
5354047 Method for separating a sheet from an array of sheets conveyed along a vacuum conveyor using diverting nozzles Oct. 11, 1994
5348285 Hold-down device on handling machines, in particular punching machines, for thin, flat objects in particular sheets of paper Sep. 20, 1994
5309695 Packet banding device May. 10, 1994
5288067 Method and apparatus for conveying an imbricated stream of sheets to a sheet processing machine Feb. 22, 1994
5280896 Sheet refeeding device Jan. 25, 1994
5261654 Sheet conveying suction apparatus Nov. 16, 1993
5201513 Device for conveying and piling sheets into stacks Apr. 13, 1993
5197812 High accuracy vacuum belt and pinch roller media transport mechanism Mar. 30, 1993
5193423 Method and device for conveying material strip portions cut from a material strip Mar. 16, 1993
5186450 Apparatus for overlapping and laying down sheets cut from a web of material by a crosscutter Feb. 16, 1993

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