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. 08, 2022
Filed:
Sep. 04, 2019
Shimadzu Corporation, Kyoto, JP;
Yuji Nakama, Kyoto, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
A thermal conductivity detector includes a first pipe passage and an exhaust pipe passage. The first pipe passage is accommodated in a cell block together with a heating device. The exhaust pipe passage has an outlet port at the downstream end, and most of the exhaust pipe passage including the downstream end is drawn out of the cell block. The heating device maintains the space in the cell block at a temperature capable of vaporizing the sample. A filament is accommodated in the first pipe passage. The gas passing through the first pipe passage is discharged out of the thermal conductivity detector through the exhaust pipe passage outlet port. On the inner surface of the exhaust pipe passage, a coating having resistance to a cleaning fluid for removing the adhered substance due to the sample gas is formed.