Pressure damping ink filter
US7364285B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2005 |
| Grant date | Apr 29, 2008 |
| Priority date | — |
| Expiry date | Sep 2, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Embodiments of the present invention relate to a pressure damping ink filter for use with an ink jet printer. The pressure damping ink filter includes at least one flow control member and a filter. The flow control member, in combination with any pressure damping provided by the thickness of the filter medium and the ink volume capacity of the filter housing, may substantially reduce, if not eliminate, pressure fluctuations in the ink stream that are generated by a high frequency electric pump. The flow control member may be a fixed or variable input restrictor and a fixed or variable output restrictor. The input restrictor and/or output restrictor may also be located inside or outside of the filter housing. Further, the input and output restrictors may be molded as part of the filter housing or the filter itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.