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:
Feb. 24, 2009
Filed:
May. 18, 2005
Thomas J. Gustafson, Piqua, OH (US);
Zvirimumwoyo P. Chinoda, Strongsville, OH (US);
Kurt A. Hilgefort, Minster, OH (US);
Terrence J. Meyer, Covington, OH (US);
Carl L. Reck, Covington, OH (US);
Thomas J. Gustafson, Piqua, OH (US);
Zvirimumwoyo P. Chinoda, Strongsville, OH (US);
Kurt A. Hilgefort, Minster, OH (US);
Terrence J. Meyer, Covington, OH (US);
Carl L. Reck, Covington, OH (US);
Hartzell Fan, Inc., Piqua, OH (US);
Abstract
A blade including a body having a leading edge, a trailing edge, a surface point of maximum camber, and a low pressure surface extending between the leading edge and the trailing edge. The body further includes a high pressure surface extending between the leading edge and the trailing edge on an opposite side of the body relative to the low pressure surface. The low pressure surface includes a leading edge surface extending from the leading edge to the surface point of maximum camber. The blade further includes at least two ridges located on the leading edge surface, each ridge extending generally parallel to the leading edge.