US Patent 7931252 Steam valve
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Patent abstract
A steam valve is provided with a valve body, a valve seat, and a valve rod provided for the valve body. The valve body has a bottom portion to which a recessed portion is formed, and the recessed portion has an edge, which is positioned on an upstream side of a place at which a shock wave is generated in steam flowing through a steam path defined by the valve body and the valve seat.
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Patent Inventor Names
Atsushi Narabe0
Hideaki Miyayashiki0
Makoto Takahashi0
Osamu Shindo0
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US Patent 07931252 Steam valve US Patent 7931252 Steam valve
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Patent Number
07931252
Patent Number
7931252
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Official Website
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US Patent 07931252 Steam valve
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Is a
Patent jurisdiction
Patent number
07931252
Date of patent
April 26, 2011
Patent application number
12549640
Date Filed
August 28, 2009
Patent primary examiner
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