Double-flush light-touch drain valve and double-flush control method
US9945110B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2015 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Feb 4, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03D5/02
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A double-flush light-touch drain valve and double-flush control method. The valve includes a base, a buoy component and a starting component, a valve body installed on the base, the base provided with an outfall, the buoy component capable of moving relatively to the base and capable of opening or closing the outfall. The starting component includes a first starting switch and a second starting switch, and the buoy component is provided with a flowing channel communicated with the inside and outside of a buoy cavity of the buoy component; and the first starting switch is operable to drive the buoy component to rise, and close the flowing channel to implement a first flush; and the second starting switch is operable to drive the buoy component to rise, and the flowing channel is opened by the starting component, to implement a second flush.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.