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. 26, 2007
Filed:
Apr. 22, 2002
Applicant:
John Hugh Dennis, Shipley, GB;
Inventor:
John Hugh Dennis, Shipley, GB;
Assignee:
University of Bradford, Bradford, West Yorkshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B03C 3/32 (2006.01); B03C 3/68 (2006.01);
U.S. Cl.
CPC ...
Abstract
A battery () drives an electric motor () which in turn drives a fan (). A circuit board () controls the operation of the motor and fan to maintain the flow rate. Air is drawn through an inlet () and out through a vent (). Foam discs () and () may extract particles from the air and an electrostatic filter may attract aerosols in the air.