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:
May. 14, 2002
Filed:
May. 17, 2001
Applicant:
Inventors:
Robert L. Miller, San Diego, CA (US);
Tihiro Ohkawa, La Jolla, CA (US);
Richard L. Freeman, Del Mar, CA (US);
Assignee:
Archimedes Technology Group, Inc., San Diego, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B03C 1/30 ;
U.S. Cl.
CPC ...
B03C 1/30 ;
Abstract
A multi-mass filter for separating particles of a multi-species plasma includes a chamber, which defines an axis. A radial electric field is crossed with a magnetic field (E×B) to move the particles of different mass (M , M and M ) on respective trajectories into respective first, second and third regions. Specifically, particles M are confined in the first region, while both particles M and M are ejected from the first region into the second region and only the particles M are ejected from the second region into the third region.