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Class Information
Number: 226/74
Name: Advancing material of indeterminate length > Means to engage longitudinally spaced modifications in material > Pins on flexible belt or chain
Description: Device including a continuous (i.e., closed-loop) member, which may comprise a concatenation of elemental parts which form or make up such a continuous (i.e., closed-loop) member, which member, in either case, is trained about a plurality of separated, noncoaxial pulleys or sprockets, and on which member one or more prongs is mounted for feeding movement therewith.










Sub-classes under this class:

Class Number Class Name Patents
226/75 With means to effect supplementary pin movement 31


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
7066368 Paper web draw-in device for a web-fed printing press Jun. 27, 2006
6705499 Rollers for guiding paper webs Mar. 16, 2004
6533262 System for feeding a continuous medium including multi-ply media to a processing station with selectable reduction in jamming, wrinkling, or pealing of the media surface Mar. 18, 2003
6450383 Method and apparatus for pinless feeding of web to a utilization device Sep. 17, 2002
6450384 Continuous paper treating apparatus and tractor Sep. 17, 2002
6279807 Method and apparatus for pinless feeding of web to a utilization device Aug. 28, 2001
6176411 Paper transfer apparatus Jan. 23, 2001
6151924 Controllable belt tensioner for a yarn delivery device Nov. 28, 2000
5979732 Method and apparatus for pinless feeding of web to a utilization device Nov. 9, 1999
5820007 Method and apparatus for pinless feeding of web to a utilization device Oct. 13, 1998
5806745 Adjustable conveyor for delivering thin web materials Sep. 15, 1998
5797530 Sheet feed tractor Aug. 25, 1998
5691908 Method for actuator identification during the transverse profile control of a continuous material web Nov. 25, 1997
5595334 Vacuum and tractor drive for paper web Jan. 21, 1997
5515149 Sheet feed mechanism with speed feeders May. 7, 1996
5474220 Successive sheet feed mechanism Dec. 12, 1995
5386280 Electrophotographic imaging apparatus with continuous form feeder located after fixing device Jan. 31, 1995
5354139 Paper feed system having mechanisms engaging opposite edges of print paper above and below print station of printer Oct. 11, 1994
5350100 Paper feed device for the transfer station of a printing device with latent character image generation Sep. 27, 1994
5305068 Continuous paper feed prevention lock mechanism for printer Apr. 19, 1994
5284285 Bearing assembly and web feed device incorporating same Feb. 8, 1994
5248073 Articulating paper sensor Sep. 28, 1993
5232140 Mechanism for positioning tractors Aug. 3, 1993
5188269 Sheet feeding device having a paper presser plate to which a variable bending moment is applied Feb. 23, 1993
5183348 Printer having tractor unit attachable to one of upstream and downstream sides of platen Feb. 2, 1993
5181641 Tractor feed for perforated webs Jan. 26, 1993
5172843 Structures of driving and driven sprockets and belt reception rotary member in paper feed apparatus Dec. 22, 1992
5165586 Paper feed apparatus equipped with feed belt supporters Nov. 24, 1992
5163593 Clamper of paper feed tractor Nov. 17, 1992
5156476 Paper feed mechanism Oct. 20, 1992
5139190 Document feed tractor with height adjustable web support surface Aug. 18, 1992
5135148 Forms feed tractor for a printer Aug. 4, 1992
5131578 Clamper of paper feed tractor Jul. 21, 1992
5127568 Lid for sheet feed tractor Jul. 7, 1992
5123583 Paper feeder for printers Jun. 23, 1992
5123762 Split tractor clamp for an impact printer Jun. 23, 1992
5110025 Paper feeder having a paper exhaustion detector May. 5, 1992
5108210 Printer having multiple tractor mounting configurations Apr. 28, 1992
5097999 Form feeding tractor utilizing a composite belt with metal pull pins Mar. 24, 1992
5080272 Device for improved control in the transport of edge-perforated paper webs in printers Jan. 14, 1992
5061096 Device for transport of multi-layer, edge-perforated imprint-receiving substrates Oct. 29, 1991
5048739 Integral frame type paper feeder Sep. 17, 1991
5027993 Perforated paper feed apparatus with an optical system for detecting the presence and/or motion of the paper Jul. 2, 1991
5026328 Belt driving sprocket in paper feeder Jun. 25, 1991
5022336 Pin type conveyor fabric feeding apparatus for a sewing machine Jun. 11, 1991
5022578 Sheet feeder for feeding continuous print paper having sprocket holes Jun. 11, 1991
5018888 Paper tension adjusting device and method for a printer May. 28, 1991
4989771 Forms feeding apparatus Feb. 5, 1991
4988226 Printer having main and auxiliary pin tractor units Jan. 29, 1991
4981244 Pin belt for movement of perforated strip Jan. 1, 1991

1 2 3 4










 
 
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