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:
Mar. 21, 2000
Filed:
Dec. 21, 1998
Dale A Christensen, Arlington, NE (US);
Valmont Industries, Inc., Valley, NE (US);
Abstract
A corner pivot irrigation machine comprising a main arm extending outwardly from a center pivot structure supported upon and driven by a plurality of non-steerable drive towers. An elongated corner arm is pivotally secured to the outer end of the main arm and is supported by a steerable drive tower including an elongated beam positioned beneath the water line of the corner arm and having a pair of drive wheel supports positioned at the opposite ends thereof which are rotatable with respect thereto about vertical axes. A steering motor, driven by a conventional guidance system, is mounted on the main beam and is connected to the rotatable drive wheel supports by an adjustable linkage to enable the linkage to be selectively adjusted when the machine is to be operated in a reverse direction.