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:
Aug. 22, 1995
Filed:
Feb. 24, 1994
Ryoichi Kinoshita, Tokyo, JP;
Yoshiyuki Takei, Iruma, JP;
Yoshizumi Takigawa, Iruma, JP;
Masahiro Furuno, Iruma, JP;
Seiko Instruments Inc., Tokyo, JP;
GL Science Inc., Saitama, JP;
Abstract
In a gas scavenging unit for gas chromatography analysis of gas generated in a thermal analyzer, the thermal analyser is equipped with a gas scavenging unit for scavenging gas generated in the thermal analyzer without usage of a carrier gas and no influence of a switching valve exists in the case of multi-stage sampling. For scavenging, there can be provided multiple sampling flow paths each have an aperture placed between the sample and the carrier gas outlet of the thermal analyzer, a flow regulator, a flow path switching valve, and a suction unit which is connected to the switching valve. The gas generated in the thermal analyzer is suctioned by the suction unit through a sampling flow path which is changed with the flow path switching valve. The appropriate volume of gas is scavenged to the GC analysis without any influence of the flow (rate) of the carrier gas even when the scavenging is done through switching to multiple scavengers.