Double throw thermal valve
US4144998A · kind A · utility
5Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1977 |
| Grant date | Mar 20, 1979 |
| Priority date | — |
| Expiry date | Mar 30, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/10
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An improved thermally actuated valve assembly having a double throw feature comprises three ports in which two passages are provided among these three ports; one passage connecting ports one and two and the other passage connecting ports two and three. At a predetermined temperature a snap-acting bimetallic member causes a change in communication from one of the passages to the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.