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:
Nov. 21, 1978
Filed:
May. 11, 1976
Applicant:
Inventors:
Klaus Hartmann, Munich, DE;
Meinhard VON Braitenberg, Grunwald, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
356434 ; 250373 ; 250573 ; 356 51 ; 356438 ;
Abstract
A method and apparatus for non-dispersive optical determination of gas and smoke components in a mixture by reflection and detection of radiation, of a different wavelength for each component, through the mixture, wherein the radiation is periodically intercepted before it enters the mixture and reflected direct to the photo-receiver and the measurement signals are divided by the stored direct signals.