Liquid-feeding system
US7380921B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2004 |
| Grant date | Jun 3, 2008 |
| Priority date | — |
| Expiry date | Dec 10, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/17553
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid-feeding system efficiently transferring liquid from a liquid storage to a liquid chamber and efficiently transferring gas from the liquid chamber to the liquid storage. The liquid-feeding system includes a liquid-using unit, the liquid storage, the liquid chamber in communication with the liquid-using unit, a plurality of communication paths facilitating communication between the liquid chamber and the liquid storage, the liquid chamber having a substantially enclosed space except where the space communicates with the plurality of communication paths and with the liquid-using unit, a pressure regulator disposed in the liquid storage and regulating the internal pressure of the liquid storage, and means for changing an internal pressure of the liquid chamber relatively higher than an internal pressure of the liquid storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.