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:
Jun. 10, 2008
Filed:
Jul. 07, 2005
Makoto Takahashi, Kanagawa-ken, JP;
Osamu Shindo, Kanagawa-ken, JP;
Atsushi Narabe, Tokyo, JP;
Hideaki Miyayashiki, Kanagawa-ken, JP;
Makoto Takahashi, Kanagawa-ken, JP;
Osamu Shindo, Kanagawa-ken, JP;
Atsushi Narabe, Tokyo, JP;
Hideaki Miyayashiki, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A main steam valve with improved flow characteristic and enhanced reliability comprises a valve seat, a main valve body, and a bypass valve body. A side surface of the bypass valve body slidably fits into the inner surface of the main valve body and forms a steam inlet comprised of a plurality of rows of inlet openings arranged along the side surface. The openings are diametrically symmetrically arranged in the bypass valve, and the positions of the openings in each of the rows are shifted from the positions of openings in the next row.