Solenoid actuated fluid valve
US4981280A · kind A · utility
23Cited by
10References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 27, 1989 |
| Grant date | Jan 1, 1991 |
| Priority date | — |
| Expiry date | Apr 27, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/402
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved solenoid actuated, fluid control valve includes a diaphragm which is fluid actuated. Inlet pressure through a restricted orifice into a chamber on one side of the diaphragm acts against the diaphragm and causes closure of the valve, when the solenoid actuated valve in the passage from the chamber to exhaust is operated. When the solenoid or pilot operated exhaust is actuated, then the chamber is depressurized and the fluid flow valve opens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.