Electrothermally operated valve
US4142553A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | May 24, 1977 |
| Grant date | Mar 6, 1979 |
| Priority date | — |
| Expiry date | May 24, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86847
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electrothermally operated valve which comprises a housing provided thereon with first and second ports and with a hermetic chamber in communication with the respective ports, a bimetallic element having a stationary end secured to an inner wall of the housing and a movable end, a cut-off valve including a valve body fixed on the movable end of the bimetallic element to co-operate with one of the first and second ports, and a heating coil coupled with the bimetallic element and adapted to be connected with a source of electricity. When the bimetallic element is heated upon energization of the heating coil, deflection of the bimetallic element is assisted by snap action to open the cut-off valve so as to communicate the first and second ports to each other through the hermetic chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.