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:
Apr. 17, 1990
Filed:
May. 31, 1989
William J Sikula, Jr, Waterloo, IA (US);
Deere & Company, Moline, IL (US);
Abstract
An engine fan mount is provided which isolates the fan from vibrations causing pitch and yaw of the fan drive shaft. Each fan bolt is provided with a spacer extending through the fan, which metal washers at each end of the spacer on either side of the fan. Elastomeric washer are positioned about the spacer on either side of the fan between the fan and the metal washers. A slight clearance, e.g., 1 mm, is provided between the fan through bore and the spacer. When the bolt is tightened, the elastomeric washers are only slightly compressed, with the metal washers and spacers preventing further compression. The fan is free to float axially along the spacers, and to vary in angle (within the limits of the clearance) relative to the bolts and drive shaft.