Patents by Inventor John Paul Grabow

John Paul Grabow has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20130253752
    Abstract: A control system of an irrigation system to continuously drive a plurality of towers supporting an elevated pipeline along a path while maintaining the pipeline in an aligned configuration. The system includes an antenna, a receiver, a controller, and a variable-speed drive motor. The antenna receives signals from at least one external positional information source. The receiver is in communication with the antenna and operable to process the signals to produce positional data corresponding to an alignment of the elevated pipeline. The controller is in communication with the receiver and programmed to adjust a speed of the motor based on the alignment data.
    Type: Application
    Filed: March 23, 2012
    Publication date: September 26, 2013
    Applicant: Lindsay Corporation
    Inventor: John Paul Grabow