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:
Dec. 21, 2004
Filed:
Apr. 16, 2003
Johann Daimer, Mörfelden-Walldorf, DE;
Stefan Gschwandtner, Aigen-Voglhub, AT;
Franz Kalchschmid, Hallstatt, AT;
Franz Kals, Steeg, AT;
Walter Lhotzky, Steeg, AT;
Franz Liebhart, Bad Goisern, AT;
Gerhard Putz, Bad Goisern, AT;
Hubert Putz, Bad Goisern, AT;
SGL Carbon GmbH & Co., Steeg/Hallstaetter See, AT;
Abstract
A method rebakes and graphitizes pitch-impregnated carbon bodies in an encapsulated Castner-type lengthwise graphitization furnace in one step. A furnace shell is constructed of element modules and can carry out the method. A furnace utilizes the furnace shell. The oxygen content in the interior of the furnace is kept below 4% by volume. The method is carried out under atmospheric pressure or at pressures that differ only slightly from the atmospheric pressure.