Friction feed tractor
US4479598A · kind A · utility
12Cited by
12References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1982 |
| Grant date | Oct 30, 1984 |
| Priority date | — |
| Expiry date | Aug 5, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H20/02
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The tractor comprises a frame, a drive roller carried by the frame, a pressure roller and a carrier therefor. The pressure roller is biased against the drive roller. The pressure roller can be moved to be spaced slightly from the drive roller to enable paper adjustment or it can be moved to a storage position. The friction feed tractor has a paper edge guide which is automatically moved to a storage position when not in use. In their storage positions the friction feed tractor and paper edge guide act as paper supports for pin feed tractor operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.