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:
Dec. 12, 2023
Filed:
Nov. 04, 2021
Dräger Safety Ag & Co. Kgaa, Lübeck, DE;
Andreas Flammiger, Lübeck, DE;
Dräger Safety AG & Co. KGaA, Lübeck, DE;
Abstract
A gas detection device and process detect a target gas for monitoring an area for the target gas. A radiation source emits electromagnetic radiation () that penetrates the area and impinges on an array of filters () that distributes the impinging radiation () onto a first gas photosensor (), a second gas photosensor () and a reference photosensor (). The first gas photosensor () is only sensitive to radiation in a first wavelength range, the second gas photosensor () is only sensitive to radiation in a second wavelength range and the reference photosensor () is only sensitive to radiation in a reference wavelength range. The wavelength ranges are spaced apart from one another. An analysis unit () analyzes signals [Sig(), Sig(), Sig()] from the three photosensors () and carries out three pair comparisons to determine whether or not the target gas is present.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile