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. 04, 2002
Filed:
Feb. 10, 2001
Junhai Liu, Auburn, AL (US);
Bor Zeng Jang, Auburn, AL (US);
Nanotek Instruments, Inc., Opelika, AL (US);
Abstract
A two-stage process and apparatus for producing nanometer-scaled powders from a metal, the process including (a) operating a first-stage heating and atomizing device to provide a stream of super-heated fine-sized metal liquid droplets into a chamber of a second-stage atomizing device; (b) operating this second-stage atomizing device by directing an atomizing fluid medium to impinge upon the stream of super-heated metal liquid droplets to further break up the metal liquid droplets into substantially nanometer-sized particles; and (c) cooling these particles to form nanometer-sized solid powders. The first-stage heating and atomizing device preferably includes a twin-wire arc spray device. The second-stage atomizing device preferably includes a vortex jet nozzle.