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:
Jan. 21, 1986
Filed:
Feb. 08, 1984
Charles B Hanson, Burlington, IA (US);
J. I. Case Company, Racine, WI (US);
Abstract
A material handling implement is disclosed having a multi-mode steering system embodying the principles of the present invention. The implement includes an articulable frame having front and rear frame portions which can be selectively articulated by an articulating hydraulic motor operatively connected thereto. The implement further includes steerable front wheel assemblies mounted on the front frame portion which can be selectively steered by operation of a steering hydraulic motor. An electrical control network is provided whereby the operator of the implement may selectively choose either conventional front wheel steering or articulated steering only. Additionally, this system includes first and second rotational sensors respectively associated with the articulable frame and one of the steerable front wheels. The sensors are electrically joined with the control network of the system whereby the operator may further select combined or coordinated front wheel and articulated steering. By this arrangement, the mode of steering control for the implement can be readily selected as best suits the work operations being performed, thus greatly enhancing the versatility and the efficiency of the implement.