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:
Dec. 09, 2003
Filed:
Nov. 16, 2001
Applicant:
Inventor:
Herbert A. Bankstahl, Appleton, WI (US);
Assignee:
Illinois Tool Works Inc., Glenview, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
F04D 2/930 ;
U.S. Cl.
CPC ...
F04D 2/930 ;
Abstract
A fan blade configuration for use with a fan in an engine driven generator is disclosed. The invention includes a plurality of fan blade segments fixed to a hub at one end of a rotary shaft. Upon transmission of a driving force to the rotary shaft, the fan blades and hub are rotated to cool the engine driven generator. The fan blades are arranged to extend away from the rotating shaft, and each have a plurality of fins and protrusions molded on opposite sides of the fan blade segments. The fan blade configuration also includes a flexible plate to bias the fan blades against the hub and stabilize the fan blades during rotation.