Active accumulator system for an ink-jet pen
US6164742A · kind A · utility
7Cited by
9References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 14, 1994 |
| Grant date | Dec 26, 2000 |
| Priority date | — |
| Expiry date | Sep 14, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17596
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The accumulator system includes minute pump and transducer mechanisms carried on the pen for regulating changes in the back pressure of the pen reservoir. One pump inflates a bag that is carried inside the reservoir. Another pump deflates the bag. The pumps are selectively controlled, in response to pressure changes detected by the transducer mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.