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:
May. 05, 1981
Filed:
Jul. 16, 1979
Applicant:
Inventors:
Kosaku Noguchi, Tokyo, JP;
Nobuyuki Komi, Mitaka, JP;
Assignee:
Koa Oil Company, Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10B / ;
U.S. Cl.
CPC ...
201 27 ; 201 33 ; 201 37 ; 201 44 ; 423448 ;
Abstract
Process for calcining green coke in at least three heating stages, which comprises preheating the green coke in the first stage, preliminarily calcining the coke in the second stage, cooling the coke; and calcining the coke in the third stage, volatile matter from the second stage being burned during the third stage. The product coke is suitable for preparing graphite electrodes.