Multi-function thermostatic valve
US4117976A · kind A · utility
13Cited by
5References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 17, 1976 |
| Grant date | Oct 3, 1978 |
| Priority date | — |
| Expiry date | Sep 17, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86558
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An improved multi-function, thermal valve assembly has four ports with two passages sealingly separated one from another; the first passage connecting the first two ports and the second passage connecting the second two ports. Each of the passages has a valve seat contained therein. The valve assembly employs at least one thermally responsive actuating member which is actuable to move a valve switching means in each of the two passages simultaneously to either open or close one or both of the valve seats contained in the two passages thereby changing communication between the first two ports and between the second two ports.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.