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. 10, 1981
Filed:
Mar. 05, 1979
Herbert N Charles, Chatham, CA;
Canadian Fram Limited, Chatham, CA;
Abstract
A cooling fan for an automotive vehicle includes a spider having arms projecting from a hub. Rivets attach blades and reinforcing plates to each of the arms, and each of the rivets extends through the reinforcing plate, the blade, and the corresponding arm. Each blade has a depressed portion defining a rim circumscribing the depressed portion, and the corresponding plates have a depression defining a flange which is adapted to engage the rim when the blade is installed on its corresponding arm. The contour of the plate is different from the contour of the blade, but the rivet forces the plate to assume the contour of the blade when the plate and the blade are installed on the arm. Accordingly, the plate is preloaded to thereby transmit bending forces to the rim which would normally be taken by the portion of the blade adjacent the rivet.