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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
5029845 Sheet feeding apparatus Jul. 9, 1991
5026038 Signature feeder operable with either flat or standing stacks Jun. 25, 1991
5018720 Document transport module May. 28, 1991
5011127 Multiple document detector Apr. 30, 1991
4986525 Sheet feed device for use in a printer or the like Jan. 22, 1991
4968015 Sheet feeding apparatus and method Nov. 6, 1990
4966360 Transport device for a multiple layered web material Oct. 30, 1990
4946085 Apparatus for producing paper with decorative edges Aug. 7, 1990
4944442 Web retention and advancement mechanism Jul. 31, 1990
4941655 Skew-correcting and delay mechanism for sheet feeder Jul. 17, 1990
4938468 Non-rotating paper path idler Jul. 3, 1990
4913415 Sheet and sheet stack delivering apparatus Apr. 3, 1990
4900007 Device for changing the direction of a product flow, particularly of paper products supplied in shingled formation Feb. 13, 1990
4898376 Film conveying apparatus Feb. 6, 1990
4893806 Pinch roller device Jan. 16, 1990
4889333 Conveying apparatus for paper products, in particular in stream form Dec. 26, 1989
4884679 Secure transport construction for banking depository devices Dec. 5, 1989
4875671 Transporting and sorting system for a flexible workpiece Oct. 24, 1989
4858911 Apparatus for conveying base Aug. 22, 1989
4850583 Document transport device Jul. 25, 1989
4844444 Roll feed apparatus Jul. 4, 1989
4842263 Sheet reversing apparatus Jun. 27, 1989
4831416 Sheet set advancing apparatus May. 16, 1989
4828247 Apparatus for conveying base May. 9, 1989
4811544 Feed apparatus for strip wrapping material, used in conjunction with a wrapping machine of the type wherein the commodity to be enveloped impinges on the wrapping sheet Mar. 14, 1989
4798374 Switchable automatic or manual mode paper feeding device having a bidirectionally operated motor for a printer Jan. 17, 1989
4798375 Device for feeding photosensitive material Jan. 17, 1989
4778169 Feeders for sheetlike articles Oct. 18, 1988
4738351 Conveyor for conveying an adhesive belt-like object Apr. 19, 1988
4729557 Sheet feed device Mar. 8, 1988
4720714 Plotter comprising a rotatable platen displaced from a sheet feeder Jan. 19, 1988
4709529 High-speed wrapping machine Dec. 1, 1987
4676497 Sheet conveyor and cooperating roller Jun. 30, 1987
4669721 Sheet transport with bowed guide Jun. 2, 1987
4662625 Decorrugating paper transport May. 5, 1987
4659073 Data reading apparatus Apr. 21, 1987
4648590 Transport device for paper sheets Mar. 10, 1987
4640409 Conveyor for sheet material Feb. 3, 1987
4638990 Roll feed apparatus with adjustable nip Jan. 27, 1987
4638991 Adjustable nip roll feed apparatus with braking/releasing device Jan. 27, 1987
4635920 Selective sheet loading apparatus Jan. 13, 1987
4630814 Sheet feed apparatus for printer Dec. 23, 1986
4629177 Pressure roller arrangement for a paper transport device Dec. 16, 1986
4629178 Document conveyor system Dec. 16, 1986
4627718 Sheet curl control apparatus for a copier Dec. 9, 1986
4623139 Paper transporting mechanism of a printer Nov. 18, 1986
4621802 Sheet material conveying device Nov. 11, 1986
4619452 Photographic print sorter Oct. 28, 1986
4619388 Automatic paper sheet supplying apparatus Oct. 28, 1986
4610444 Controlling system for mechanisms delivering sheets taken off from a pile in a processing machine Sep. 9, 1986

1 2 3 4 5 6 7 8 9 10 11










 
 
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