Piston sensor with baffle plate
US10386868B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2016 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | Jun 30, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7791
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A valve assembly includes a sensing cavity and a piston cavity defined in valve body and/or in a bonnet. A piston head of a piston may be disposed within the piston cavity, and a piston stem has an end portion in contact with valve plug. A baffle plate has a first surface defining a portion of the sensing cavity and a second surface defines a portion of the piston cavity. The baffle plate includes at least one baffle aperture such that the sensing cavity is in fluid communication with the piston cavity, and pressure in the sensing cavity acts on a surface of the piston head to displace the piston and the valve plug between an open and closed position. The at least one baffle aperture is adapted to restrict the flow of fluid between the sensing cavity and the first working volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.