Acoustic ink jet printhead design and method of operation utilizing flowing coolant and an emission fluid
US6154236A · kind A · utility
12Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1999 |
| Grant date | Nov 28, 2000 |
| Priority date | — |
| Expiry date | Jul 23, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/14
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A droplet emitter with an array of droplet emitting devices constructed such that one flowing liquid is used to create the droplets while a second low acoustic impedance liquid can be used to both make the transfer of acoustic energy to the first liquid more efficient and help maintain a uniform temperature of the droplet emitter array. Both liquids can be circulated through the droplet emitter to allow for excess heat generated by control electronics to be transferred to the flowing liquids. This prevents, for instance excess heat build-up within the droplet emitter and allows for higher more accurate droplet emission rates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.