| 发明名称 | Valve seals | ||
| 摘要 | Valve seals are described. An example seal for use in a valve includes a ring-shaped cartridge having a first portion, a second portion opposite the first portion, and a compressible sealing portion between the first and second portions. The first and second portions have respective first and second curved surfaces adjacent a sealing surface of the compressible sealing portion. The first and second curved surfaces enable a flow control member to compress the sealing portion prior to contacting the curved surfaces as the flow control member transitions to a closed position. | ||
| 申请公布号 | US9568110(B2) | 申请公布日期 | 2017.02.14 |
| 申请号 | US201414331814 | 申请日期 | 2014.07.15 |
| 申请人 | Fisher Controls International LLC | 发明人 | Helfer Wade Jonathon |
| 分类号 | F16K1/226 | 主分类号 | F16K1/226 |
| 代理机构 | Hanley, Flight & Zimmerman, LLC | 代理人 | Hanley, Flight & Zimmerman, LLC |
| 主权项 | 1. A seal for use in a valve, comprising: a ring-shaped cartridge having a first portion, a second portion opposite the first portion, and a compressible sealing portion between the first and second portions, the first and second portions having respective first and second curved surfaces adjacent a sealing surface of the compressible sealing portion, the first and second curved surfaces enabling a flow control member to compress the sealing portion prior to contacting the curved surfaces as the flow control member transitions to a closed position, the sealing surface has a first radius of curvature equal to a radius of curvature of the first curved surface and a second radius of curvature equal to a radius of curvature of the second curved surface. | ||
| 地址 | Marshalltown IA US | ||