Automatically operating valve for regulating water flow and faucet provided with said valve
US4971106A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1988 |
| Grant date | Nov 20, 1990 |
| Priority date | — |
| Expiry date | Sep 19, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87877
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An automatically operating valve for regulating water flow, especially a mixing valve for automatically mixing hot water and cold water to obtain a mixed water of a desired temperature is characterized by employing piezoelectric actuators for operating valve bodies thereof. Due to such a construction, the valve can not only fully close or open but also carries out the fine flow amount control by regulating the opening rate or angle of the valve body. Especially in case the automatically operating valve is a mixing valve, the mixing ratio of hot water and cold water can be accurately regulated so that the mixed water of a desired temperature can be always automatically obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.