The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 2011
Filed:
Oct. 02, 2008
Applicants:
Tsutomu Ooishi, Yokohama, JP;
Tomoo Oofuji, Yokohama, JP;
Hideo Hosaka, Kawasaki, JP;
Yasunori Iwai, Yokohama, JP;
Hiroshi Saeki, Tokyo, JP;
Inventors:
Tsutomu Ooishi, Yokohama, JP;
Tomoo Oofuji, Yokohama, JP;
Hideo Hosaka, Kawasaki, JP;
Yasunori Iwai, Yokohama, JP;
Hiroshi Saeki, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01K 1/00 (2006.01); F16K 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A steam valveincludes: a valve seatbeing accommodated in a steam flow path of a casingprovided with a steam inlet pipeand a steam outlet pipe; and a valve bodycapable of contacting the valve seat, the valve bodybeing accommodated in the steam flow path of the casing. An expansion partthat smoothly projects toward an inside of the steam outlet pipeis disposed at a downstream side on a contact surface of the valve seat