Actuator assemblies and related methods for valve systems
US11982370B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2022 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Feb 3, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/89
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Aspects of the present disclosure relate to fail open or fail close actuator assemblies and related methods for valve systems. In one implementation, an actuator assembly for valves includes an outer housing that includes an inner surface at least partially defining an internal volume. The actuator assembly includes one or more first fluid openings formed in the outer housing, one or more second fluid openings formed in the outer housing, and one or more ambient openings formed in the outer housing. The actuator assembly includes a valve stem disposed at least partially in the internal volume, and a first piston disposed in the internal volume and coupled to the valve stem. The actuator assembly includes a second piston disposed in the internal volume and disposed about the valve stem.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.