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. 16, 1988
Filed:
Mar. 06, 1987
Applicant:
Inventors:
Manfred Morgenstern, Castrop-Rauxel, DE;
Claus Bertrand, Castrop-Rauxel, DE;
Assignee:
Ruetgerswerke Aktiengesellschaft, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264 295 ; 201-6 ; 201 17 ; 201 25 ; 208 22 ; 264 297 ; 264105 ; 264118 ; 264125 ;
Abstract
Coke for reactor graphite is produced continuously by coking a hard pitch with a softening point (K.-S.) above 130.degree. C. and a coking residue of at least 45% by weight in a rotary pipe furnace equipped with a moving device and subsequent calcination without intermediate cooling. The temperature of the inner wall of the indirectly heated furnace ranges from about 500.degree. to about 800.degree. C. The gases and vapors formed during the coking process are guided in countercurrent flow to the pitch.