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:
Feb. 18, 1992
Filed:
Jan. 24, 1990
Wolfgang May, Reinfeld, DE;
Dragerwerk Aktiengesellschaft, Lubeck, DE;
Abstract
The invention is directed to an arrangement for measuring the concentration of gaseous or vaporous components of a gas mixture by using optically distinguishable reaction zones from gas test tubes which contain a substance reacting with the component to be detected. The change of the reaction zone is determined by means of direct observation and/or by means of an opto-electronic scanning device. This arrangement is improved in accordance with the invention in that the reacting substance is accommodated at least in one channel formed in a carrier. The channel has a cross section in the reaction zone which is less than 1 mm.sup.2.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile