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. 04, 2003
Filed:
Aug. 29, 2001
Christoph Clausen, Lübeck, DE;
Wilfried Diekmann, Lübeck, DE;
Günter Wahlbrink, Rehhorst, DE;
Drager Safety AG & Co. KGaA, Lübeck, DE;
Abstract
An optical gas sensor has a compact design and without movable optical elements, with at least one radiation source ( ), at least one measuring detector ( ) and a reference detector ( ). The reflecting measuring cuvette is designed as an annular space ( ) between a first, inner cylinder section ( ) and a second, outer cylinder section ( ) that is concentric thereto. The annular space ( ) is limited by a cover element ( ) and a bottom element ( ) arranged at a spaced location therefrom in the direction of the longitudinal axis. The cover element ( ) is permeable to the measuring gas. The bottom element ( ) accommodates the radiation source ( ).