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.

Date of Patent:
Sep. 08, 1981

Filed:

Jun. 07, 1979
Applicant:
Inventors:

Walter Fabinski, Kriftel, DE;

Udo Deptolla, Ober Olm, DE;

Assignee:

Hartmann & Braun Aktiengesellschaft, Frankfurt am Main, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01J / ; G01N / ;
U.S. Cl.
CPC ...
250345 ; 356414 ;
Abstract

The cross sensitivity of a two-beam infrared gas analyzer is eliminated by using two differently long cells for the measuring gas in the two beam paths and by using an interference filter at least in the beam path containing the longer cell; the filter, however, does not filter the entire beam in that path.


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Fabinski, Walter. (1981). Nondispersive infrared gas analyzer (U.S. Patent No. 4288693). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4288693

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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