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. 05, 2010
Filed:
Aug. 01, 2008
Applicants:
Andrew R. Fox, Oakdale, MN (US);
Marvin E. Jones, Grant, MN (US);
Larry J. Carson, Maplewood, MN (US);
Inventors:
Andrew R. Fox, Oakdale, MN (US);
Marvin E. Jones, Grant, MN (US);
Larry J. Carson, Maplewood, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B03C 3/70 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed are apparatus, system, and method for enhancing air purification efficiency regarding a gaseous medium passing through an opening. Included is a high voltage source that creates an effective voltage field across the opening; and at least one charge bleeding element constructed and arranged to maintain an effective voltage field across the opening.