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:
Nov. 12, 1991
Filed:
Aug. 17, 1989
William C Sahm, Peoria, IL (US);
Caterpillar, Inc., Peoria, IL (US);
Abstract
A control system and method automatically controls a work implement of an excavating machine to perform a complete excavation work cycle. In performing the work cycle, the control system automatically extends the work implement down into the trench, completes a dig stroke, captures the excavated material, swings the work implement to dump, dumps the load, returns the work implement to the trench, and repeats the work cycle until a trench is excavated according to operator programmed specifications. The control system monitors the position of the work implement and the forces exerted on the work implement and controllably actuates the work implement according to predetermined position and force setpoints.