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. 07, 2008
Filed:
May. 17, 2004
Applicants:
Fred A. Brown, Coronado, CA (US);
Philip J. Bowen, San Diego, CA (US);
Inventors:
Fred A. Brown, Coronado, CA (US);
Philip J. Bowen, San Diego, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B 49/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A draft inducer is disclosed. The draft inducer includes an impeller having one or more backward curved blades. The impeller is coupled to a motor which is preferably a DC motor. The DC motor resides at the center of the impeller and is housed within the impeller structure. The draft inducer may be mounted on a hot water heater between the hot and cold water pipes such that the impeller spins about a vertical axis.