Liquid storage device and cleaning apparatus
US11812908B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 13, 2021 |
| Grant date | Nov 14, 2023 |
| Priority date | — |
| Expiry date | Apr 20, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D37/00
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A liquid storage device includes a first liquid storage structure, a second liquid storage structure, and a liquid guiding assembly. The second liquid storage structure is arranged inside the first liquid storage structure, and the second liquid storage structure is flexible and includes a variable volume. A space between a structural wall of the first liquid storage structure and a structural wall of the second liquid storage structure is configured to store a first liquid, and the second liquid storage structure is configured to store a second liquid. The second liquid is capable of flowing into or flowing out of the second liquid storage structure through the liquid guiding assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.