Ink jet head with channel filter
US5610645A · kind A · utility
57Cited by
12References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1993 |
| Grant date | Mar 11, 1997 |
| Priority date | — |
| Expiry date | Apr 30, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14387
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A particulate filter (16) is provided within an inlet channel (22) of an ink jet (14). The filter is oriented generally in the direction of ink flow to provide a greater filter surface area. Positioning the filter within the inlet channel results in reduced acoustic crosstalk, more effective filtering, and more efficient purging of the filter itself because of the relatively high ink pressure drop across the filter in the channel. Positioning the channel vertically assists the buoyancy of the bubble movement during operation and purging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.