Patents by Inventor James W. Durham

James W. Durham 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).

  • Patent number: 6446452
    Abstract: A multiplex system is disclosed for maintaining the temperature of a product during a warehouse and distribution process employing a vehicle. The multiplex system may include a plurality of temperature control zones at which it is desired to maintain the temperature of the product. A cargo temperature control zone includes a parking area for a number of delivery vehicles having cargo containers. A primary refrigeration system is utilized to refrigerate a secondary fluid which is a non-compressible fluid that may be pumped over long distances to the cargo temperature control zone, as well as other temperature control zones. The secondary refrigerated fluid is pumped to air handling units which are advantageously disposed is heat exchange relationships to create and deliver refrigerated air into the cargo container of one or more parked delivery vehicles.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: September 10, 2002
    Inventor: James W. Durham
  • Publication number: 20010052235
    Abstract: A multiplex system is disclosed for maintaining the temperature of a product during a warehouse and distribution process employing a vehicle. The multiplex system may include a plurality of temperature control zones at which it is desired to maintain the temperature of the product. A cargo temperature control zone includes a parking area for a number of delivery vehicles having cargo containers. A primary refrigeration system is utilized to refrigerate a secondary fluid which is a non-compressible fluid that may be pumped over long distances to the cargo temperature control zone, as well as other temperature control zones. The secondary refrigerated fluid is pumped to air handling units which are advantageously disposed is heat exchange relationships to create and deliver refrigerated air into the cargo container of one or more parked delivery vehicles.
    Type: Application
    Filed: February 9, 2001
    Publication date: December 20, 2001
    Inventor: James W. Durham
  • Patent number: 6196295
    Abstract: A multiplex system is disclosed for maintaining the temperature of a product during a warehouse and distribution process employing a vehicle. The multiplex system may include a plurality of temperature control zones at which it is desired to maintain the temperature of the product. A cargo temperature control zone includes a parking area for a number of delivery vehicles having cargo containers. A primary refrigeration system is utilized to refrigerate a secondary fluid which is a non-compressible fluid that may be pumped over long distances to the cargo temperature control zone, as well as other temperature control zones. The secondary refrigerated fluid is pumped to air handling units which are advantageously disposed is heat exchange relationships to create and deliver refrigerated air into the cargo container of one or more parked delivery vehicles.
    Type: Grant
    Filed: August 12, 1998
    Date of Patent: March 6, 2001
    Inventor: James W. Durham
  • Patent number: 6014866
    Abstract: A multiplex system is disclosed for maintaining the temperature of a product during a warehouse and distribution process employing a vehicle. The multiplex system may include a plurality of temperature control zones at which it is desired to maintain the temperature of the product. A cargo temperature control zone includes a parking area for a number of delivery vehicles having cargo containers. A primary refrigeration system is utilized to refrigerate a secondary fluid which is a non-compressible fluid that may be pumped over long distances to the cargo temperature control zone, as well as other temperature control zones. The secondary refrigerated fluid is pumped to an air handling unit which advantageously is disposed within the cargo container of one or more parked delivery vehicles. Preferably, at least two handling units are provided in each cargo container for more even distribution of refrigerated air.
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: January 18, 2000
    Inventor: James W. Durham