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:
Mar. 02, 1993
Filed:
Feb. 21, 1991
Ibrahim S Balbaa, Mississauga, CA;
Steven J Oda, Etobicoke, CA;
Ontario Hydro, Toronto, CA;
Abstract
An apparatus for calcining and/or sintering ceramic materials comprising a kiln having a heating chamber formed from a microwave impermeable material separated from abutting secondary chambers containing conventional heating means by perforated walls, permitting convectional/radiative heat transfer from the secondary chambers into the heating chamber while minimizing leakage of microwave radiation from the heating chamber. A method for processing ceramic materials in the apparatus comprises applying convectional or convectional/radiative heat to elevate the temperature of a material to increase microwave coupling, and then applying microwave radiation to further elevate the temperature of the material and maintain a desired temperature for a desired length of time.