Patents by Inventor James J. Nelson

James J. Nelson 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).

  • Heating control system for a screed
    Patent number: 7993075
    Abstract: A control system for heating a screed assembly of a paving machine is provided. The control system includes a plurality of resistive heating elements positioned adjacent to a screed plate of the screed assembly. An electrical power supply is selectively connected with the resistive heating elements via switches operated by a controller. The controller is responsive to inputs from at least manual switches and temperature sensors. The controller is configured to automatically adjust the temperature of the screed plate by selectively energizing fewer than all of the resistive heating elements at a time.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: August 9, 2011
    Assignee: Caterpillar Paving Products Inc.
    Inventor: James J. Nelson
  • Heating control system for a screed
    Patent number: 7641419
    Abstract: A control system for heating a screed assembly of a paving machine is provided. The control system includes a plurality of resistive heating elements positioned adjacent to a screed plate of the screed assembly. An electrical power supply is selectively connected with the resistive heating elements via switches operated by a controller. The controller is responsive to inputs from at least manual switches and temperature sensors. The controller is configured to automatically adjust the temperature of the screed plate by selectively energizing fewer than all of the resistive heating elements at a time.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: January 5, 2010
    Assignee: Caterpillar Paving Products Inc
    Inventor: James J. Nelson
  • Heating Control System for A Screed
    Publication number: 20090257825
    Abstract: A control system for heating a screed assembly of a paving machine is provided. The control system includes a plurality of resistive heating elements positioned adjacent to a screed plate of the screed assembly. An electrical power supply is selectively connected with the resistive heating elements via switches operated by a controller. The controller is responsive to inputs from at least manual switches and temperature sensors. The controller is configured to automatically adjust the temperature of the screed plate by selectively energizing fewer than all of the resistive heating elements at a time.
    Type: Application
    Filed: June 15, 2009
    Publication date: October 15, 2009
    Applicant: Caterpillar Paving Products Inc.
    Inventor: James J. Nelson
  • Heating control system for a screed
    Patent number: 7572080
    Abstract: A control system for heating a screed assembly of a paving machine is provided. The control system includes a plurality of resistive heating elements positioned adjacent to a screed plate of the screed assembly. An electrical power supply is selectively connected with the resistive heating elements via switches operated by a controller. The controller is responsive to inputs from at least manual switches and temperature sensors. The controller is configured to automatically adjust the temperature of the screed plate by selectively energizing fewer than all of the resistive heating elements at a time.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: August 11, 2009
    Assignee: Caterpillar Paving Products Inc.
    Inventor: James J. Nelson
  • Screed heating arrangement
    Patent number: 6981820
    Abstract: A screed heating arrangement is provided for a screed assembly that is towed behind a paving machine. The screed heating arrangement includes at least one electric heater bonded to an upper surface of a screed plate.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: January 3, 2006
    Assignee: Caterpillar Paving Products Inc.
    Inventor: James J. Nelson
  • Screed heating arrangement
    Publication number: 20040086336
    Abstract: A screed heating arrangement is provided for a screed assembly that is towed behind a paving machine. The screed heating arrangement includes at least one electric heater bonded to an upper surface of a screed plate.
    Type: Application
    Filed: October 30, 2002
    Publication date: May 6, 2004
    Inventor: James J. Nelson
  • Vehicle horn
    Patent number: D245405
    Type: Grant
    Filed: March 23, 1976
    Date of Patent: August 16, 1977
    Assignee: Midland-Ross Corporation
    Inventor: James J. Nelson