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. 31, 1996
Filed:
Nov. 18, 1994
Michael J Neely, Dayton, OH (US);
John R Savage, Kettering, OH (US);
ITT Automotive Electrical Systems, Inc., Auburn Hills, MI (US);
Abstract
An airfoil defining the shape of the blades of a vehicle engine-cooling fan assembly. The airfoil has a leading edge; a rounded, bulbous nose section adjacent the leading edge; a trailing edge; a curved pressure surface extending smoothly and without discontinuity from the nose section to the trailing edge; a curved suction surface extending smoothly and without discontinuity from the nose section to the trailing edge; and a thin aft section formed adjacent the trailing edge and between the pressure surface and the suction surface. The aft section has a camber at its location of maximum camber of between 5 and 12% of the chord of the airfoil. The nose section has a thickness which is greater than the thickness of the airfoil between the pressure surface and the suction surface, blends smoothly into the suction surface, and blends smoothly into the pressure surface via a first blend radius forming a convex surface extending from the nose section adjacent the leading edge and a second blend radius forming a concave surface extending from the convex surface to the pressure surface of the airfoil.