Device for the hydropneumatic control of a valve with a pneumatic locking means
US9004444B2 · kind B2 · utility
1Cited by
11References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 26, 2010 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | Mar 29, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K1/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Valve control device includes a body with a longitudinal axis, a control member housed at least partially in the body in a bottom portion along the longitudinal axis, a piston movable along the longitudinal axis and housed in a portion of the body forming with the piston a control chamber of the piston, an element movable in rotation with respect to the longitudinal axis on a top portion of the body, and sealing means between the movable element and the control chamber in the area of the connection port and/or of the passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.