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:
Jul. 26, 1983
Filed:
Mar. 09, 1981
Rudi Ross, Bruchkobel, DE;
Helmut Heimel, Ronneburg, DE;
Leybold Heraeus GmbH, Cologne, DE;
Abstract
A cuvette for optical gas-analysis apparatus, having an elongated metallic housing with two end-faces, two chambers which are parallel to the longitudinal axis and have radiation-reflecting wall surfaces and which are separated from each other by a partition. One of the chambers is for holding a gas under investigation and the other is for holding a reference gas. The chambers are closed off at the end-faces of the housing by radiation-penetrable windows made of a material from the group consisting of calcium fluoride and barium fluoride and which are each initially connected by glass solder to an intermediate frame, which is connected to the housing. The intermediate frame has a U-shaped cross-section and is composed of a metal from the group consisting of gold, silver and aluminum and the intermediate frame is connected, to the windows and to the housing by glass solder.