"Ink dispenser with ""frozen"" solid ink"
US4490731A · kind A · utility
172Cited by
6References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 22, 1982 |
| Grant date | Dec 25, 1984 |
| Priority date | — |
| Expiry date | Nov 22, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17593
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A new type of apparatus for dispensing "frozen" solid ink and the ink for use therein for printing on paper is disclosed. The ink dye vehicle is chosen to have a melting point above room temperature, so that the ink which is melted in the apparatus will not be subject to evaporation or spillage during periods of non-printing. The vehicle is also chosen to have a low critical temperature to permit the use of the solid ink in a thermal ink jet printer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.