Valve trim apparatus for use with valves
US8167269B2 · kind B2 · utility
11Cited by
12References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 2009 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Nov 19, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K47/08
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve trim apparatus for use with valves is described. An example valve trim apparatus includes a cage having an upper portion removably coupled to a lower portion. A closure member is disposed within the cage and has a first seating surface and a second seating surface. A seal assembly is fixed between the upper and lower portions of the cage. The first sealing surface of the closure member sealingly engages the seal assembly when the closure member is in a closed position to prevent leakage between the closure member and the cage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.