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Class Information
Number: 271/272
Name: Sheet feeding or delivering > Feeding > By means to convey sheet (e.g., from pack to operation) > Between superposed conveyor couple
Description: Device wherein the sheet-moving means comprises two elements, each of which elements has an endless, orbitally-moving surface, the surface of one element being opposite to and spaced from the surface of the other element during at least a portion of their movement and the surfaces moving in the same direction and engaging opposite surfaces of a sheet lying therebetween during said portion of movement.










Sub-classes under this class:

Class Number Class Name Patents
271/273 Having means to permit separation of couple 453


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
8201824 Variable force nip assembly Jun. 19, 2012
8186676 Apparatus and method for reducing vibration and noise in a printer May. 29, 2012
8181956 Sheet transport device for image forming apparatus May. 22, 2012
8157261 Paper sheet conveying device and paper sheet conveying system Apr. 17, 2012
8135320 Image forming apparatus Mar. 13, 2012
8128087 Power transmitter for image forming apparatus and an image forming apparatus having the same Mar. 6, 2012
8118506 Idler roller assembly for printing apparatus Feb. 21, 2012
8115796 Beltless tandem-type image forming apparatus Feb. 14, 2012
8106315 Envelope weighing apparatus with gripping compensation for variable thickness envelopes Jan. 31, 2012
8091883 Sheet feeding device and image forming apparatus Jan. 10, 2012
8052145 Document handling apparatus Nov. 8, 2011
8047540 Recording medium conveying device and image forming apparatus Nov. 1, 2011
8042807 Transport for printing systems Oct. 25, 2011
8028991 Image forming apparatus Oct. 4, 2011
8020865 Deflecting nip sheet shingling buffer mechanism Sep. 20, 2011
8020860 Devices and methods for aligning and moving a media sheet within an image forming device Sep. 20, 2011
8002271 Image forming apparatus with curl correction using guide ribs Aug. 23, 2011
7992869 Sheet-conveying device Aug. 9, 2011
7992870 Sheet conveying apparatus and image forming apparatus Aug. 9, 2011
7988149 Sheet conveying device and image recording apparatus Aug. 2, 2011
7980556 Image forming apparatus with differential sheet conveying force of discharging rooler pair Jul. 19, 2011
7954814 Feeding device and image forming apparatus Jun. 7, 2011
7950658 Recording medium transporting device and recording apparatus May. 31, 2011
7950660 Sheet feeder and image forming apparatus May. 31, 2011
7946580 Sheet material feeding apparatus with guide members passing through roll grooves May. 24, 2011
7946776 Medium feed control method for preventing overlap-feed of recording media May. 24, 2011
7942411 Sheet conveying apparatus and image forming apparatus May. 17, 2011
7938395 Sheet feeding device May. 10, 2011
7931269 Rotational jam clearance apparatus Apr. 26, 2011
7922173 Apparatus for handling documents of value Apr. 12, 2011
7918453 Rotational jam clearance apparatus Apr. 5, 2011
7909750 Method and apparatus for feeding large packages or bags into a reclosable zipper profile attaching device Mar. 22, 2011
7905485 Paper feeding apparatus and paper feeding method thereof with a plurality of force units with fluid-supply devices Mar. 15, 2011
7900915 Device for transporting and weighing letters Mar. 8, 2011
7900919 Sheet transport roller system Mar. 8, 2011
7887052 Mailpiece feed device having an integrated image sensor Feb. 15, 2011
7883089 Image forming apparatus Feb. 8, 2011
7878503 Alignment of media sheets in an image forming device Feb. 1, 2011
7871074 Paper carrying apparatus and image forming apparatus having the same Jan. 18, 2011
7866653 Duplex document reader Jan. 11, 2011
7864383 Image reader Jan. 4, 2011
7857535 Method of controlling transport amount, transport device and recording apparatus Dec. 28, 2010
7854428 Rotary die cut stacking system having optical beam generator to facilitate the positioning of layboy arms Dec. 21, 2010
7828291 Mechanism for conveying sheet Nov. 9, 2010
7828292 Sheet conveying device and image forming apparatus Nov. 9, 2010
7815181 Recording apparatus Oct. 19, 2010
7798492 Sheet conveying apparatus Sep. 21, 2010
7793934 Sheet conveying device and image forming apparatus Sep. 14, 2010
7793935 Feeding paper apparatus and feeding paper method thereof Sep. 14, 2010
7789386 Sheet transporting apparatus Sep. 7, 2010

1 2 3 4 5 6 7 8 9 10 11










 
 
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