Hydraulic isolation valve
US6871576B2 · kind B2 · utility
8Cited by
13References
55Claims
0Family size
Inventor
Key dates
| Filing date | Feb 19, 2003 |
| Grant date | Mar 29, 2005 |
| Priority date | — |
| Expiry date | Feb 19, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87909
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Method and apparatus for isolating hydraulic devices in a stacked hydraulic circuit of modular design employing an isolator valve module which enables partial and/or complete isolation of components in a hydraulic system to be isolated for inspection, testing, maintenance or replacement, by selective operation of the isolator valves in the isolator valve module. The isolator valve module may be a sub-plate module supporting other modules or a plurality of stacks of modules or may be a “sandwich” type module sandwiched between a sub-plate and another module or between two sandwich-type modules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.