| 发明名称 | Methods and apparatus to align a seat ring in a valve | ||
| 摘要 | Methods and apparatus to align a seat ring in a valve are described. An example fluid valve includes a valve body having a curved internal surface to receive a seat ring and a seat ring having a sealing surface to receive a movable control member and a curved surface opposite the sealing surface to engage the curved internal surface of the valve body. | ||
| 申请公布号 | US8991786(B2) | 申请公布日期 | 2015.03.31 |
| 申请号 | US201113098425 | 申请日期 | 2011.04.30 |
| 申请人 | Fisher Controls International LLC | 发明人 | Davies, Jr. Lonnie Oscar;Westwater David J. |
| 分类号 | F16K1/42;F16K25/00 | 主分类号 | F16K1/42 |
| 代理机构 | Hanley, Flight & Zimmerman, LLC | 代理人 | Hanley, Flight & Zimmerman, LLC |
| 主权项 | 1. A fluid valve, comprising: a valve body having a curved internal surface that receives a seat ring, the curved internal surface being non-parallel relative to a centerline of the fluid valve; the seat ring having a sealing surface that receives a plug and a curved surface opposite the sealing surface to engage the curved internal surface of the valve body, wherein the curved surface of the seat ring comprises a protrusion extending from the curved surface to form an indentation in the curved internal surface of the valve body, wherein a surface of the seat ring comprises a shoulder that receives a guide. | ||
| 地址 | Marshalltown IA US | ||