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:
Aug. 07, 1990
Filed:
Jun. 28, 1989
Applicant:
Inventors:
Bruno Hutsch, Bonn, DE;
Bernd Schmidt, Bonn, DE;
Assignee:
Ringsdorff-Werke GmbH, Bonn, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
356312 ;
Abstract
A graphite tube furnace with a specimen support for use in atomic absorption spectroscopy has preferably knife-edged shaped flanges on the inner wall surface of the tube furnace. The specimen support is held on the flanges at a distance from the inner wall surface. This avoids the production of heat in the specimen support and heat flow from the tube furnace to the specimen support.