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:
Feb. 05, 1985
Filed:
Dec. 16, 1981
Applicant:
Inventor:
John M Ohno, Plymouth, MI (US);
Assignee:
General Electric Company, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
51307 ; 51298 ; 264 60 ;
Abstract
A silicon carbide cutting insert is prepared using a pre-pressed core dispersion of carbon fiber, carbon black, and filler in a temporary binder such as paraffin. The pre-pressed core dispersion is enveloped with a dispersion of super-hard crystals and carbon black in the temporary binder and compacted with the pre-pressed core to form an intermediate composite which is subsequently heated to allow for the removal of the temporary binder and the infiltration of liquefied silicon. The composite is then sintered to form a matrix of silicon and silicon carbide throughout the cutting insert.