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. 20, 1981
Filed:
Apr. 08, 1980
John F Shumaker, Mt. Pleasant, IA (US);
J. I. Case Company, Racine, WI (US);
Abstract
A unique and improved loader design is disclosed incorporating straight lift arms and channeled front wheels. The front wheels define a channel or groove through which the lift arms are allowed to intercept unobstructed. The lift arms pivotally join a bucket positioned at the front of the loader with a pair of uprights positioned at the rear end of the loader. The channeled front wheels may be formed from two ordinary tires joined in tandem and separated by a spacer or by using molded, grooved, elastomeric tires. The design eliminates the highly stressed joint found in ordinary two-piece lift arm loaders. Fabrication is simplified and manufacturing costs are reduced.