U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Swing arm guidance system

Patent 6923390 Issued on August 2, 2005. Estimated Expiration Date: Icon_subject March 31, 2024. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3797517

3902668

Corner system addition for a center pivot irrigation system
Patent #: 4340183
Issued on: 07/20/1982
Inventor: Kegel ,   et al.

Mobile mounted remote sensing/application apparatus for interacting with selected areas of interest within a field
Patent #: 5884224
Issued on: 03/16/1999
Inventor: McNabb, et al.

Corner irrigation system including a GPS guidance system
Patent #: 6095439
Issued on: 08/01/2000
Inventor: Segal, et al.

Alignment control for long center pivot irrigation systems
Patent #: 6254018
Issued on: 07/03/2001
Inventor: Ostrom

6290151

Irrigation positioning system
Patent #: 6512992
Issued on: 01/28/2003
Inventor: Fowler, et al.

Corner irrigation system including an ultra wide band (UWB) guidance system Patent #: 6726132
Issued on: 04/27/2004
Inventor: Malsam

Inventor

Assignee

Application

No. 10814829 filed on 03/31/2004

US Classes:

239/729, With noncircular coverage239/728, Center pivot701/215, Having multiple GPS antennas or receivers (e.g., differential GPS)701/216, Having an self-contained position computing means (e.g., dead reckoning)702/2, Earth science239/731, With means to detect misalignment702/150Orientation or position

Examiners

Primary: Ganey, Steven J.
Assistant: Gorman, Darren

Attorney, Agent or Firm

International Classes

B05B003/00
B05B003/18
G01C021/00
G01S003/14
G06G007/78

Abstract

A guidance system for controlling the steering of a swing arm on a center pivot irrigation system is provided through the use of two satellite signal receiving antennas associated with a drive tower for the swing arm. The signal receiving antennas are mounted from the swing tower so that one of the antennas is in a position forwardly of a steerable wheel for the tower and the other antenna is located in a position rearwardly of the steerable wheel. The signal receiving antennas are mounted in such fashion that they rotate in a direct relation to the steering of the steerable wheel so as to provide position information for the steering of the drive tower that more efficiently and effectively maintains the drive tower on a desired path of travel.

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