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:
Dec. 12, 2017
Filed:
Oct. 28, 2015
Applicant:
Nittan Valve Co., Ltd., Kanagawa, JP;
Inventors:
Hisanaga Yokoyama, Kanagawa, JP;
Shigeru Uchida, Kanagawa, JP;
Assignee:
NITTAN VALVE CO., LTD., Kanagawa, JP;
Primary Examiner:
Int. Cl.
CPC ...
F01L 3/14 (2006.01); B21K 1/22 (2006.01); B23P 15/00 (2006.01); F16K 49/00 (2006.01);
U.S. Cl.
CPC ...
F01L 3/14 (2013.01); B21K 1/22 (2013.01); B23P 15/002 (2013.01); F16K 49/007 (2013.01); Y10T 29/49307 (2015.01);
Abstract
A method and an apparatus for supplying inert gas into a poppet valve intermediate are provided that are capable of properly filling the inert gas without waste into the poppet valve intermediate of any size. After a negative pressure is achieved by suction in an internal space (Win) of a poppet valve intermediate (W) as compared to an ambient pressure (Pa) of the poppet valve intermediate (W), the inert gas is supplied into the internal space (Win) until a pressure (F) of the internal space (Win) reaches the ambient pressure (Ps) of the poppet valve intermediate (W).