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. 17, 1978
Filed:
Jun. 14, 1976
Applicant:
Inventors:
Cheng-Chien Chou, Carmel, IN (US);
Clifford Sau Yee, Indianapolis, IN (US);
Assignee:
Wallace Murray Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D / ;
U.S. Cl.
CPC ...
4162 / ; 416243 ; 416D / ;
Abstract
A sheet metal fan blade of improved performance and efficiency has a varying camber angle and chord angle along radial positions of the blade, such that the angle of attack along at least 70% of the length of the blade is not less than 2.degree. or more than 10.degree.. The fan blade construction exhibits utility in an automotive radiator cooling system.