Plural cassettes having compatibility arrangement
US4971462A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 1989 |
| Grant date | Nov 20, 1990 |
| Priority date | — |
| Expiry date | Nov 1, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J32/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An arrangement for assuring ink ribbon and correction tape compatibility in a device which utilizes a first cassette having an ink ribbon therein and a second cassette having a correction tape therein in the operation thereof, the arrangement including engaging formations located on the first and second cassettes which ensure that the ink ribbon and correction tape are functionally compatible with each other when the respective cassettes are inserted in the device such as, for example, functional compatibility between a single-strike ink ribbon and a lift-off correction tape, or functional compatibility between a multiple-strike ink ribbon and a cover-up correction tape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.