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.:

US 9661808 B1

PDF
Full Text
Expired
Date of Patent:
May. 30, 2017

Filed:

Feb. 02, 2015
Applicant:

Irrovation Llc, Omaha, NE (US);

Inventors:

Kevin J. Abts, Omaha, NE (US);

Gerald L. Abts, Denver, CO (US);

Assignee:

Irrovation LLC, Omaha, NE (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01G 25/00 (2006.01); A01G 25/09 (2006.01);
U.S. Cl.
CPC ...
A01G 25/092 (2013.01);
Abstract

An irrigation system that includes multiple interconnected spans that are supported by multiple tower structures. Each intermediate tower structure and end tower structure may include a dual-controller drive assembly that may include both a fixed-speed drive controller controlling the speed of movement of the dual-controller drive assembly when the fixed-speed drive controller is selected and a variable-speed drive controller controlling the speed of movement of the dual-controller drive assembly when the variable-speed drive controller is selected, and one or more selector switches configured to either manually, based on manual operator input, or automatically, based on automatic sensor input, select between the fixed-speed drive controller and the variable-speed drive controller.


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