Ribbon cassette for word processors, printers and typewriters
US4502801A · kind A · utility
12Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1983 |
| Grant date | Mar 5, 1985 |
| Priority date | — |
| Expiry date | Mar 22, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J32/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A typewriting or printer film ribbon cassette has a carrier with fixedly spaced pins forming axes for the takeup and supply spools so that, as the ribbon builds up on the takeup spool, the carrier is shifted away from a feed wheel whose axis is coplanar with the axes of the supply and takeup spools against the force of a spring urging the carrier in the opposite direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.