Globe valve sticking prevention
US5715858A · kind A · utility
1Cited by
21References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1995 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Feb 10, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7613
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A control valve that minimizes sticking of the plug assembly by particles such as welding byproducts in the associated heating system. The valve port having a continuous decrease of diameter from the port opening toward the valve seat and an additional stepped decrease in diameter adjacent to the valve seat, which enables particles wedged in the clearance between the plug and port to be released and guided away from the port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.