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. 03, 1989
Filed:
Jul. 08, 1988
Applicant:
Inventor:
Jean C Vera, Valentigney, FR;
Assignee:
ECIA - Equipments Et Composants Pour L'Industrie Automoblie, Audincourt, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D / ;
U.S. Cl.
CPC ...
416189 ; 4161 / ;
Abstract
The blade (10) for a propeller constituted by a hub (20) to which the feet (12) are fixed has a leading edge (14) and a trailing edge (15) which is formed by two arcs (152, 153) having respective mean radii of curvature (.rho.2, .rho.3) which are different and interconnected without an angular point. These edges are both curved in the downstream direction and define a blade which narrows from the axis to the periphery of the propeller. Application in propellers of motorized fans associated with automobile vehicles.