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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:
Patents under this class:
| 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 |
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