Partial stroke testing with pulsed control loop
US8056390B2 · kind B2 · utility
6Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2008 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Jul 6, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K37/0083
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Partial Stroke Testing (PST) equipment and methodologies provide PST data for one or more valves by withholding or applying power to the one or more valves for periodic time periods that increase by an incremental amount until the one or more valves partially stroke or a maximum test period expires.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.