Water seal device for removing odour of toilet
US10724220B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 8, 2017 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Dec 12, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03C1/284
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Disclosed is a water seal device for removing odour of a toilet. The water seal device is mounted in a toilet tank, and consists of an exhaust assembly, a water seal backflow assembly and an electronic control assembly. The device is provided with a powerful exhaust electric motor. After starting, the electronic control assembly supplies power to the exhaust electric motor, and the exhaust electric motor can inhale a gas in a bowl into the tank. Water in a U-shaped trap water seal is pushed and pressed out by means of the gas pressure. When the toilet discharges sewage, the electronic control assembly automatically cuts a power supply, and the exhaust electric motor stops working, and the U-shaped trap water loses the pressure to block gas return.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.