Solids strainer system for a hydraulic choke
US7275606B1 · kind B1 · utility
6Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 2007 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | May 4, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86871
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention contemplates a strainer based upon a four-way, two-position rotary cylindrical plug valve having a hollow plug. The normal entry port for the sealing plug of the plug valve is a circular radial hole passing from the exterior of the plug into the interior cavity of the plug. The normal exit port for the sealing plug is a regular array of small holes across from and coaxial with the normal entry hole. The ports for the valve body are in two pairs positioned at 90° from each other, with the axes of the ports lying in the same transverse plane as the ports of the valve plug.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.