Ink jet pen with a heater element having a contoured surface
US6485128B1 · kind B1 · utility
8Cited by
17References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 1997 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Oct 7, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1626
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermal ink jet with a body having an ink firing chamber and an orifice. An electrically activated heating element is connected to the body in thermal communication with the firing chamber, and includes a contoured surface portion coextensive with at least a portion of the heating element. The contoured surface portion of the firing chamber has a plurality of recesses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.