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. 20, 1985
Filed:
Jun. 02, 1983
Applicant:
Inventors:
Walter H Carlson, Aurora, OH (US);
Gerald B Zander, North Olmsted, OH (US);
George C Hanna, Chagrin Falls, OH (US);
Kevin L Burmeister, Kent, OH (US);
Assignee:
Graphite Sales, Inc., Chagrin Falls, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423345 ;
Abstract
A process for the manufacture of silicon carbide crystals and whiskers comprises reacting at a temperature between 1,400.degree. C. and 2,100.degree. C. and in the presence of an inert gas, a material including as essential ingredients carbon, alumina, iron oxide, potassium oxide, and silica in an amount to provide a carbon to silicon ratio of from about 0.84:1 to about 2.17:1.