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. 29, 2021
Filed:
Oct. 11, 2016
Shimadzu Corporation, Kyoto, JP;
Yasuhiro Kimoto, Kyoto, JP;
Shingo Masuda, Kyoto, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
In a gas chromatograph, a back-pressure calculation processorcalculates a back pressure for a first detector. The pressure calculation processorcalculates a pressure of a carrier gas in a branching part. The back-flow determination processorcompares the pressure of the carrier gas in the branching part calculated by the pressure calculation processorwith the back pressure of the first detector calculated by the back-pressure calculation processor, and if the pressure of the carrier gas in the branching part is smaller than the back pressure of the first detector, the back-flow determination processordetermines that the carrier gas will flow back. It is therefore possible to surely know that there is a possibility that a back-flow of the carrier gas will occur, by checking the determination result of the back-flow determination processor