Method, system and apparatus for automatic calibration of a needle valve device in a pressurized flow system
US9341277B2 · kind B2 · utility
1Cited by
10References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2013 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | May 13, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/6065
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Exemplary embodiments are directed to apparatus, systems and methods used in connection with a needle valve device operating in a pressurized flow system. The apparatus, systems and methods provide for automatic positioning of a needle relative to a seat in the needle valve device to provide consistent calibration with minimal user interaction after a maintenance event or upon a start-up of the pressurized flow system. The apparatus, systems and methods utilize a calibration collar secured to a shaft of an actuator within the needle valve device. The calibration collar includes one or more locking mechanism and a spring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.