High-temperature gas control valve
US6508453B2 · kind B2 · utility
28Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 5, 2001 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Apr 5, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/1221
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A high-temperature gas control valve for controlling a flow of a high-temperature gas, includes a valve seat made of metal, a diaphragm made of metal, which is brought into contact with or separated from the valve seat by operation of an actuator, thereby opening and closing the valve. At least one of the diaphragm and the valve seat is coated with an amorphous-carbon film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.