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:
Jan. 18, 1977
Filed:
Apr. 15, 1975
Applicant:
Inventor:
Otto Blunck, Hamburg, DT;
Assignee:
H. Maihak A.G., Hamburg, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01D / ;
U.S. Cl.
CPC ...
250345 ; 250233 ; 250347 ; 250351 ; 350274 ; 356 51 ;
Abstract
An infrared gas analyzer is provided with a first path for reference radiation and a second path for measuring radiation. A source emits infrared radiation into the first and second paths. A detector arrangement is positioned at the ends of the paths for sensing the intensity of reference and measuring radiation passing through the paths. A radiation-travel-control arrangement alternately blocks one and then the other of the two paths and during the blocking of each path causes radiation directed towards the blocked path to be deflected into the unblocked path so that such radiation is not wasted.