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. 25, 1978
Filed:
Feb. 24, 1977
Wilhelm Berstermann, Georgsmarienhutte, DE;
Klockner-Werke AG, Duisburg, DE;
Abstract
An electrode for a spectro-analytical arrangement is of a substance consisting of carbonaceous and metallic components so that an envelope of reducing atmosphere surrounds an electric spark discharge generated between an electrode and a metallic body the composition of the material of which is to be spectro-analytically determined. The substance may be a homogeneous mixture of the carbonaceous and metallic components, such as a sintered mixture of pulverulant metallic and carbonaceous metals. The particles of the metallic component have sizes of at most 0.1 millimeter, while the particles of the carbonaceous component have sizes at most 0.01 millimeter. The carbonaceous component may be graphite, while the metallic component may be silver. The amount of graphite in the substance may be between 5 and 20% by weight and the amount of silver may be between 95 and 80% by weight. The preferred use of the electrode of the invention is in a spectral quantometer.