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. 11, 2003
Filed:
Jun. 15, 2001
Applicant:
Inventors:
Kevin Bailey, Ottawa, CA;
Bjarki Hallgrimsson, Ottawa, CA;
Rudy A. Vandenbelt, Ottawa, CA;
Troy G. Anderson, Marblehead, MA (US);
Assignee:
Headwater Research & Development, Inc., Ottawa, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L 9/00 ;
U.S. Cl.
CPC ...
A47L 9/00 ;
Abstract
Insertion of a dust wand into a portable vacuum filtration canister removes foreign matter therefrom when and where necessary without polluting the air. A powerpack provides cordless (rechargeable or non-rechargeable) and corded operation. A readily serviceable grid filter, and a HEPA or other filter provides cleaned air free of dirt, dust and allergens.