Title:
デュアル・セグメント・ボール弁
Document Type and Number:
Japanese Patent JP4884226
Kind Code:
B2
Abstract:
A ball valve has a valve body defining an inner seat and having a fluid inlet and fluid outlet and a control ball element rotatably mounted in the inner seat. The control ball element has a partially spherical outer surface, a flow passage having a leading edge, a first inner control surface abutting the leading edge, and a second inner control surface abutting the leading edge at an angle oblique to the first inner control surface.
Inventors:
Caprella, brian, jay
Application Number:
JP2006535503A
Publication Date:
February 29, 2012
Filing Date:
September 20, 2004
Export Citation:
Assignee:
Dresser, ink
International Classes:
F16K3/22; F16K5/06; F16K5/10
Domestic Patent References:
| JPS55107165A | 1980-08-16 |
Foreign References:
| US4989833A | 1991-02-05 | |||
| US6378842B1 | 2002-04-30 | |||
| US5524863A | 1996-06-11 |
Attorney, Agent or Firm:
Yuzo Sanada
Ohara Shizuo
Ohara Shizuo