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:
Jul. 16, 2019
Filed:
Oct. 24, 2016
Applicant:
Inficon Gmbh, Bad Ragaz, CH;
Inventors:
Fredrik Enquist, Linkoping, SE;
Niclas Edvardsson, Linkoping, SE;
Johan Hellgren, Linkoping, SE;
Henrik Vennerberg, Linkoping, SE;
Assignee:
INFICON GmbH, Bad Ragaz, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01T 1/18 (2006.01); G01N 21/3504 (2014.01); G01N 21/03 (2006.01); G01N 21/39 (2006.01); G01N 33/00 (2006.01); G01N 21/17 (2006.01);
U.S. Cl.
CPC ...
G01N 21/3504 (2013.01); G01N 21/031 (2013.01); G01N 21/1717 (2013.01); G01N 21/39 (2013.01); G01N 33/0016 (2013.01); G01N 33/0026 (2013.01); G01N 2021/1723 (2013.01); G01N 2201/0698 (2013.01);
Abstract
A gas detection system, comprising a sample gas inlet, a reference gas inlet and a gas modulation valve alternatingly connecting one of the sample gas inlet and the reference gas inlet to a gas sensor, is characterized in that a selective transfer filter is located in the gas flow path connecting the gas modulation valve and the gas sensor.