Patents by Inventor Dennis Wayne Sullivan

Dennis Wayne Sullivan 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).

  • Vibration detection in a transport refrigeration system through current sensing
    Patent number: 6550260
    Abstract: A current sensor positioned on a power line monitors current draw associated with an electrical motor driven shaft based device, such as a scroll compressor. Mechanical vibrations in the scroll compressor force stress on the motor shaft of the scroll compressor, directly influencing current draw. By monitoring current draw, vibrations resulting from problems in the compressor, such as a broken mounting bracket, can be detected. A controller receives the current values and indicates if a current value exceeds a threshold current value or if a plurality of current values exceed a threshold value.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: April 22, 2003
    Assignee: Carrier Corporation
    Inventor: Dennis Wayne Sullivan
  • VIBRATION DETECTION IN A TRANSPORT REFRIGERATION SYSTEM THROUGH CURRENT SENSING
    Publication number: 20030061825
    Abstract: A current sensor positioned on a power line monitors current draw associated with an electrical motor driven shaft based device, such as a scroll compressor. Mechanical vibrations in the scroll compressor force stress on the motor shaft of the scroll compressor, directly influencing current draw. By monitoring current draw, vibrations resulting from problems in the compressor, such as a broken mounting bracket, can be detected. A controller receives the current values and indicates if a current value exceeds a threshold current value or if a plurality of current values exceed a threshold value.
    Type: Application
    Filed: September 28, 2001
    Publication date: April 3, 2003
    Inventor: Dennis Wayne Sullivan