Temperature responsive time delay valve
US4382899A · kind A · utility
3Cited by
4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 11, 1981 |
| Grant date | May 10, 1983 |
| Priority date | — |
| Expiry date | Dec 11, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/185
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A temperature responsive time delay valve in which free flow of fluid is afforded above a predetermined temperature level and in which a delayed fluid flow is achieved in one direction and free fluid flow in the opposite direction below the predetermined temperature level. The temperature responsive valve portion incorporates a bimetal disc which is supported at its outer periphery by O-rings to provide a resilient mounting and a fluid seal requiring passage of fluid through a central aperture in the disc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.