Impulse ink jet ink delivery apparatus
US4340896A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1980 |
| Grant date | Jul 20, 1982 |
| Priority date | — |
| Expiry date | Dec 22, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/175
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An apparatus is described for delivering ink to an array of impulse ink jet heads some of which may be at different vertical locations. A flow of ink is established along a supply conduit located vertically below the ink jet heads. Ink feed conduits connect at junctions to the supply conduit to provide the ink jet heads with ink. A plurality of flow impeding devices are employed between the junctions so as to enable the formation of columns of ink in the feed conduits of sufficient height to supply the ink to the impulse ink feed jets. Appropriate spacing of the ink jet heads above the top of the ink columns then provides required small negative ink pressures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.