High temperature protective valve and the use thereof in a shower head
US9770726B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 8, 2012 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Feb 27, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7737
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A high temperature protective valve and the use thereof in a shower head, wherein the high temperature protective valve includes a body, the body having a complete one-way waterway, and also a thermo-sensitive assembly and a pivot valve assembly. The thermo-sensitive assembly is fixed inside the body and has a memory alloy body which can be immersed in the waterway and extend and retract along the direction of the flow. The pivot valve assembly is also fixed inside the body downstream waterway of the thermo-sensitive assembly. The pivot valve assembly has a pivot valve plug which is controllable by the thermo-sensitive assembly so as to cut off the waterway. The high temperature protective valve of such a structure has a fast response and can achieve good protective effects at a high temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.