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:
Oct. 14, 2014
Filed:
Mar. 08, 2007
Maher I. Boulos, Sherbrooke, CA;
Jerzy Jurewicz, Sherbrooke, CA;
Jiayin Guo, Sherbrooke, CA;
Xiaobao Fan, Sherbrooke, CA;
Nicolas Dignard, Sherbrooke, CA;
Maher I. Boulos, Sherbrooke, CA;
Jerzy Jurewicz, Sherbrooke, CA;
Jiayin Guo, Sherbrooke, CA;
Xiaobao Fan, Sherbrooke, CA;
Nicolas Dignard, Sherbrooke, CA;
Tekna Plasma Systems Inc., Sherbrooke, CA;
Abstract
A process and apparatus for preparing a nanopowder are presented. The process comprises feeding a reactant material into a plasma reactor in which is generated a plasma flow having a temperature sufficiently high to vaporize the material; transporting the vapor with the plasma flow into a quenching zone; injecting a preheated quench gas into the plasma flow in the quenching zone to form a renewable gaseous condensation front; and forming a nanopowder at the interface between the renewable controlled temperature gaseous condensation front and the plasma flow.