Patents by Inventor Dennis W. O'Donnell

Dennis W. O'Donnell 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).

  • Cooling system for electric vehicle
    Publication number: 20030116313
    Abstract: A motive power system for an electric vehicle has a drive train connected to one or more drive wheels of the vehicle. The motive power system has an electrical motor having a motive power output connection for attachment to the drive train. A first heat exchanger has thermal connection to the electrical motor to remove heat from the electrical motor, the first heat exchanger employing a coolant fluid. A second heat exchanger is in thermal contact with the coolant fluid and with an ambient atmosphere for removing heat from the coolant fluid.
    Type: Application
    Filed: October 25, 2002
    Publication date: June 26, 2003
    Inventor: Dennis W. O'Donnell
  • Cooling system for electric vehicle
    Publication number: 20020112851
    Abstract: A motive power system for an electric vehicle has a drive train connected to one or more drive wheels of the vehicle. The motive power system has an electrical motor having a motive power output connection for attachment to the drive train. A first heat exchanger has thermal connection to the electrical motor to remove heat from the electrical motor, the first heat exchanger employing a coolant fluid. A second heat exchanger is in thermal contact with the coolant fluid and with an ambient atmosphere for removing heat from the coolant fluid.
    Type: Application
    Filed: February 19, 2001
    Publication date: August 22, 2002
    Inventor: Dennis W. O'Donnell
  • Air conditioner for motor vehicle
    Patent number: 6134897
    Abstract: For a motor vehicle having an internal combustion engine, an air conditioning system having a refrigerant fluid contained within a sealed envelope. An electrical motor is located inside the sealed envelope which drives a compressor for the refrigerant fluid. Attachment means are provided for flowpaths which include a hot heat exchanger, an expansion valve, and a cold heat exchanger. Attachment means for mounting the system in a motor vehicle are also provided.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: October 24, 2000
    Inventor: Dennis W. O'Donnell
  • Air conditioner for a motor vehicle
    Patent number: 5927089
    Abstract: Air conditioner for a motor vehicle having an internal combustion engine. An air conditioning system having a refrigerant fluid contained within a sealed envelope. An electrical motor is located inside the sealed envelope which drives a compressor for the refrigerant fluid. Attachment means are provided for flowpaths which include a hot heat exchanger, an expansion valve, and a cold heat exchanger. Attachment means for mounting the system in a motor vehicle is also provided.
    Type: Grant
    Filed: April 23, 1997
    Date of Patent: July 27, 1999
    Inventor: Dennis W. O'Donnell