Temperature responsive valve
US4375873A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1981 |
| Grant date | Mar 8, 1983 |
| Priority date | — |
| Expiry date | Sep 15, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86879
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A temperature responsive valve comprising a hollow housing having three ports, a cylinder mounted in and to the housing assembly in the vicinity of one of the ports, the cylinder having a gas escape space through which said one of the ports communicates with the hollow portion of the housing assembly, a thermal expansive member which changes in its cubical volume in response to an external temperature; and a valve body which is connected to the thermal expansive member and which is movably arranged in the cylinder via a single seal member so as to engage with or disengage from the cylinder in accordance with the cubical change of the thermal expansive member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.