Dual-drainage switching mechanism of water tank
US9587387B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2012 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Aug 23, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03D1/35
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A dual-drainage switching mechanism of water tank has: a water container with bottom opening of the inner cavity, an air vent communicating with the inner cavity is arranged on the sealed top; a valve unit used for controlling opens or closes of the air vent; a drain valve controller comprising a partial flush button and a full flush button, and the air vent is opened through the linking and coupling of the full flush button and the valve unit, and the air vent is closed through the linking and coupling of the partial flush button and the valve unit. The dual-draining switch is achieved through hermetically storing or non-hermetically controlling part of water body in the inner cavity of the water container, traditional one-pressing drain valve can be transformed into the draining control mechanism with dual-draining function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.