Heating element
US8141986B2 · kind B2 · utility
4Cited by
26References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2010 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Oct 12, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1646
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A heating element of a fluid ejection device includes an insulative layer, a resistor portion interposed between and spaced apart from a pair of conductive portions, and an upper structure defining a fluid chamber above the resistor portion. The insulative layer defines a shoulder portion adjacent a side edge of the resistor portion, the shoulder portion vertically spaced below a top surface of the resistor portion by a distance of no more than twice a thickness of the resistor portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.