Liquid supply apparatus, liquid discharge apparatus, and three-dimensional fabricating apparatus
US10486361B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 23, 2017 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Jul 10, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/16517
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A liquid supply apparatus includes a liquid container to temporarily store liquid, a vacuum device connected to the liquid container to decompress the liquid container to form a negative pressure in the liquid container and a negative pressure forming device disposed between the liquid container and the vacuum device. The vacuum device includes a gas chamber connected to the liquid container, a flexible member forming a part of wall surface of the gas chamber, a first elastic member to push the flexible member in a first direction to expand the gas chamber, a pressing member to push the flexible member in a second direction opposite the first direction to compress the gas chamber. The gas chamber moves between a connection position and a cutoff position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.