Water tank assembly, pumping and drainage system, reversing valve, base station body, base station, and cleaning system
US12274406B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 29, 2024 |
| Grant date | Apr 15, 2025 |
| Priority date | — |
| Expiry date | Feb 29, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A20/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A water tank assembly configured to be installed on a base station is provided. The water tank assembly includes: a tank body defined with a sewage cavity, the tank body being provided with a water inlet channel and a sewage discharging channel communicating with the sewage cavity; the sewage cavity being configured to receive sewage coming through the water inlet channel under a negative pressure inside the sewage cavity introduced by an external air source, and configured to discharge the sewage through the sewage discharging channel under a positive pressure inside the sewage cavity introduced by the external air source; and a one-way valve arranged in the water inlet channel, in case the sewage cavity is in a positive pressure state, the one-way valve being in a closed state, and in case the sewage cavity is in a negative pressure state, the one-way valve being in an open state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.