Liquid supply unit and liquid injection device
US10618305B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 2019 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | Mar 25, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J29/13
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid supply unit includes a first chamber, a second chamber, an opening/closing member and a lever member. The first chamber communicates with a liquid storage container and is set to a first pressure. The second chamber communicates with a liquid injection head and is internally set to a second pressure decompressed from the first pressure. A posture of the opening/closing member is changed between a closing posture and an opening posture. A posture of the lever member is changed between a sealing posture for sealing an opening allowing communication between the second chamber and atmosphere and an opening posture for opening the opening. The lever member allows the opening/closing member to be set to the closing posture while being set in the sealing posture, and changes the posture of the opening/closing member from the closing posture to the opening posture while being set in the opening posture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.