Title:
密封外側表面を有する流体バルブ制御部材
Document Type and Number:
Japanese Patent JP4838796
Kind Code:
B2
Abstract:
Fluid valve control members having contoured sealing surfaces and methods of making the same are disclosed. An example fluid valve control member includes a body portion having a sealing surface configured to engage a sealing ring within a fluid control valve. A first portion of the sealing surface has a first spherical radius with respect to a first point along a centerline of the body portion and a second portion of the sealing surface has a second spherical radius with respect to a second point along the centerline of the body portion. The first and second points are offset from each other and the second spherical radius is sized to be smaller than the first spherical radius to form a substantially seamless transition between the first and second portions of the sealing surface.
Inventors:
D'Arge, Paul Russell
Larry Dean, Postust
Wit, gary alan
Larry Dean, Postust
Wit, gary alan
Application Number:
JP2007519234A
Publication Date:
December 14, 2011
Filing Date:
June 06, 2005
Export Citation:
Assignee:
Fisher Controls International Limited Liability Company
International Classes:
F16K3/22; F16K1/24; F16K5/06; F16K5/20
Domestic Patent References:
| JPH02127864A | 1990-05-16 | |||
| JPS62283265A | 1987-12-09 | |||
| JPS4878437A | 1973-10-22 |
Foreign References:
| US5618026A | 1997-04-08 | |||
| US4121607A | 1978-10-24 |
Attorney, Agent or Firm:
Patent business corporation Yuko patent office