Patents by Inventor Patrick Wilson Cross

Patrick Wilson Cross 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).

  • Boundary sensor assembly for a robotic lawn mower, robotic lawn mower and robotic lawn mower system
    Patent number: 9072218
    Abstract: A robotic mower sensor assembly for detecting a boundary wire signal. The sensor assembly includes a plurality of analog inductive sensors with a first inductive sensor oriented along a first axis and a second inductive sensor oriented along a second, different axis. Each inductive sensor is configured to generate a signal indicative of the distance of the robotic mower from the boundary wire. A control unit communicating with the sensor assembly is configured to operate the robotic mower in response to the signals from the sensor assembly which are indicative of the distance of the robotic mower from the boundary wire.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: July 7, 2015
    Assignee: DEERE & COMPANY
    Inventors: David August Johnson, Patrick Wilson Cross, Colin Eric Das
  • Boundary Sensor Assembly for a Robotic Lawn Mower, Robotic Lawn Mower and Robotic Lawn Mower System
    Publication number: 20140012418
    Abstract: A robotic mower sensor assembly for detecting a boundary wire signal. The sensor assembly includes a plurality of analog inductive sensors with a first inductive sensor oriented along a first axis and a second inductive sensor oriented along a second, different axis. Each inductive sensor is configured to generate a signal indicative of the distance of the robotic mower from the boundary wire. A control unit communicating with the sensor assembly is configured to operate the robotic mower in response to the signals from the sensor assembly which are indicative of the distance of the robotic mower from the boundary wire.
    Type: Application
    Filed: July 9, 2012
    Publication date: January 9, 2014
    Applicant: DEERE & COMPANY
    Inventors: David August Johnson, Patrick Wilson Cross, Colin Eric Das
  • Power limiting system for multiple electric motors
    Patent number: 8130478
    Abstract: A power limiting system for multiple electric motors includes an electrical power generating component, such as an alternator, and a plurality of motor controllers connected to an electrical bus. Each motor controller compares the voltage on the bus to a specified minimum voltage and a specified maximum voltage, and reduces its electric power output if the voltage on the bus is less than the maximum voltage while continuing to operate the electric motors.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: March 6, 2012
    Assignee: Deere & Company
    Inventors: Clement Vanden Godbold, Patrick Wilson Cross
  • POWER LIMITING SYSTEM FOR MULTIPLE ELECTRIC MOTORS
    Publication number: 20100253271
    Abstract: A power limiting system for multiple electric motors includes an electrical power generating component, such as an alternator, and a plurality of motor controllers connected to an electrical bus. Each motor controller compares the voltage on the bus to a specified minimum voltage and a specified maximum voltage, and reduces its electric power output if the voltage on the bus is less than the maximum voltage while continuing to operate the electric motors.
    Type: Application
    Filed: April 7, 2009
    Publication date: October 7, 2010
    Inventors: Clement Vanden Godbold, Patrick Wilson Cross