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. 10, 2001
Filed:
Feb. 04, 1999
Dennis L. Lewallen, Beloit, KS (US);
Sunflower Manufacturing Company, Inc., Beloit, KS (US);
Abstract
Improved bearing assemblies for agricultural implements and in particular flexible frame towed agricultural implements such as plows and the like are disclosed. The bearing assemblies preferably include a bearing formed from ultra high molecular weight polyethylene. The improved bearing assembly includes a flanged cylindrical bearing sleeve adapted for use with a hinge connecting adjacent frame sections of a flexible frame towed agricultural implement. The flanged cylindrical bearing sleeve is positioned within an outer cylindrical metal bearing sleeve which is mounted in the end of a male hinge member in alignment with a pivot pin receiving bore extending therethrough. A pivot pin extending through the flanged cylindrical bearing sleeve connects a hinge clevis on a female hinge member to the male hinge member. A flange on the flanged cylindrical bearing sleeve extends between thrust bearing surfaces on the male hinge member and the female hinge member. A bearing assembly for a coulter for the implement includes an inner cylindrical bearing sleeve positioned between a coulter pivot shaft and an outer bearing sleeve on a coulter arm.