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:
Jun. 19, 1990
Filed:
Aug. 14, 1989
Applicant:
Inventors:
Wulf Bramer, Bruchkobel, DE;
Udo Schusser, Alzenau, DE;
Heinz Schneider, Linsengericht, DE;
Hans Kreutzer, Gelnhausen, DE;
Assignee:
Heraeus Edelmetalle GmbH, Hanau, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27D / ;
U.S. Cl.
CPC ...
266 44 ; 266 88 ;
Abstract
A melting trough made of ceramic material is used for melting small amounts of metal by means of a flame including at least one trough channel which is not closed during operation. A thermosensor having a protective cover extends into the trough which is filled with melt during operation through an aperture in the wall of the trough. The aperture as well as the thermosensor are located below the level of the melt.