Inkjet nozzle device having dual chamber inlets and twofold symmetry
US9498951B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2015 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Feb 20, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14467
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An inkjet nozzle device includes: a nozzle chamber having a floor, a roof and perimeter sidewalls extending between the floor and the roof, wherein a nozzle aperture is defined in the roof; a heating element for generating gas bubbles in the nozzle chamber so as to eject ink through the nozzle aperture, wherein a centroid of the heating element is aligned with a centroid of the nozzle aperture; and a pair of chamber inlets defined in the floor of the nozzle chamber, the chamber inlets being symmetrically disposed about the centroid of the heating element. The inkjet nozzle device has a pair of orthogonal symmetry planes passing through the centroid of the nozzle aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.