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. 04, 2024
Filed:
Feb. 28, 2020
Applicant:
Shimadzu Corporation, Kyoto, JP;
Inventors:
Masashi Yamane, Kyoto, JP;
Kiyonori Koga, Kyoto, JP;
Assignee:
SHIMADZU CORPORATION, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 30/32 (2006.01); G01N 30/54 (2006.01); G01N 30/86 (2006.01);
U.S. Cl.
CPC ...
G01N 30/8658 (2013.01); G01N 30/32 (2013.01); G01N 30/54 (2013.01); G01N 2030/324 (2013.01);
Abstract
A gas chromatograph is provided with: a sample gas generator; a separation column; a detector; a plurality of gas supply sources; a switching unit; a regulator; and an out-of-gas determination unit. After the out of gas determination unit has determined that the out of gas has occurred in the gas supply source supplying the carrier gas to the sample gas generator, it is configured to perform a column protection operation for changing the gas supply source fluidly connected to the sample gas generator by the switching unit.