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:
Mar. 03, 2020
Filed:
Feb. 07, 2013
Shimadzu Corporation, Kyoto, JP;
Masayuki Okada, Kyoto, JP;
Yasunori Terai, Osaka, JP;
SHIMADZU CORPORATION, Kyoto, JP;
Abstract
A gas chromatograph for preventing leakage of carrier gas and secondary accident such as explosion is provided. A flow rate restricting valve having valve mechanism which mechanically restricts flow rate of carrier gas is disposed at the upstream side of sample inlet portionof the carrier gas flow pathand apart from the flow rate control valvewhich controls the flow rate of the carrier gas, which is inlet into sample inlet portion and analytical column according to signal from control unit. The excessive flow rate that is larger than the predetermined resulted from the leakage of carrier gas is mechanically restricted to a pre-set flow rate by using the flow rate restricting valve. The leakage of carrier gas e.g., helium and the secondary accident due to leakage of carrier gas e.g., hydrogen, are prevented.