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. 18, 1985
Filed:
May. 05, 1983
Applicant:
Inventors:
Karl A Schwetz, Sulzberg, DE;
Klaus Reinmuth, Durach, DE;
Klaus Hunold, Kempten, DE;
Franz Isemann, Oberstdorf, DE;
Assignee:
Elektroschmelzwerk Kempten GmbH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ;
U.S. Cl.
CPC ...
501 90 ; 264 295 ; 264 296 ; 264 61 ; 264 63 ; 264 65 ; 264 66 ; 264325 ; 501 91 ;
Abstract
The invention provides substantially pore-free sintered polycrystalline articles comprising .alpha.-silicon carbide, boron carbide and free carbon, the quantitative proportions of which, in percent by weight, are defined by the trapezoidal area having, in the ternary system B/Si/C of FIG. 1 the corner points