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. 14, 2000
Filed:
Jul. 10, 1998
Applicant:
Inventors:
Stephen M Gatchell, Warwick, RI (US);
Zhiwei Xu, El Paso, TX (US);
Assignee:
Honeywell Inc., Minneapolis, MN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
96424 ; 95 25 ; 95 26 ;
Abstract
A portable air purifier including a housing defining an air inlet, an air outlet and an air flow passage extending therebetween; a filter mechanism disposed to filter air circulating through the flow passage; and a fan retained by the housing and activatable to draw air through the air inlet, move air through the flow passage and filter mechanism, and discharge air through the air outlet. An electrically powered drive mechanism is energizable to activate the fan and a control system including a processor monitors and records elapsed time data during periods in which the fan is activated to move air.