Ink jet print head having ceramic ink pump member whose thin orifice plate is reinforced by thick reinforcing plate, and metallic nozzle member bonded to the orifice or reinforcing plate
US5831651A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Mar 1, 1996 |
| Grant date | Nov 3, 1998 |
| Priority date | — |
| Expiry date | Mar 1, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14387
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet print head including a ceramic ink pump member and a metallic nozzle member bonded to the pump member through a channel plate, wherein the pump member has a diaphragm plate with a piezoelectric and/or electrostrictive element, a spacer plate having a window, and a laminar structure of an orifice plate and a reinforcing plate which structure cooperates with the diaphragm and spacer plates to define an ink chamber communicating with an ink supply channel formed in the channel plate through an ink inlet hole formed in the reinforcing plate and a minute hole formed in the orifice plate, and further communicating with a nozzle formed in the nozzle member through communication holes formed in the orifice and reinforcing plates, and wherein the channel plate and the nozzle member are bonded to the laminar structure of the pump member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.