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:
Nov. 25, 2003
Filed:
Sep. 24, 2002
Applicant:
Inventors:
Robert T. Nagel, Raleigh, NC (US);
John Craig Holbert, Corvallis, OR (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F26B 1/900 ; F26B 7/00 ;
U.S. Cl.
CPC ...
F26B 1/900 ; F26B 7/00 ;
Abstract
Fans circulate heated air which is introduced from nozzles defining discharge axes that are respectively directed generally parallel to, yet slightly toward, the rotational axes of the fans. The fans operate in first and second modes to respectively force flow in opposite first and second directions. Heated air is introduced from the nozzles at the high-pressure sides of the fans.