Patents by Inventor David Champneys

David Champneys 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).

  • Waste heat recovery units
    Patent number: 11215406
    Abstract: A waste heat recovery unit includes a duct for hot gas. The duct is divided into first, second and third adjacent and parallel channels each with an inlet and an outlet. A heat exchanger is located in each of the first and third channels. The second channel is located between the first and third channels and provides a bypass channel. A damper system is operable to selectively open and close the inlets of the three channels. This provides a more compact waste heat recovery unit configuration which is more straightforward to manufacture and maintain.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: January 4, 2022
    Inventor: David Champneys
  • Waste Heat Recovery Units
    Publication number: 20190145720
    Abstract: A waste heat recovery unit includes a duct for hot gas. The duct is divided into first, second and third adjacent and parallel channels each with an inlet and an outlet. A heat exchanger is located in each of the first and third channels. The second channel is located between the first and third channels and provides a bypass channel. A damper system is operable to selectively open and close the inlets of the three channels. This provides a more compact waste heat recovery unit configuration which is more straightforward to manufacture and maintain.
    Type: Application
    Filed: January 16, 2019
    Publication date: May 16, 2019
    Applicant: Boustead International Heaters Limited
    Inventor: David Champneys
  • IMPROVEMENTS TO WASTE HEAT RECOVERY UNITS
    Publication number: 20160146555
    Abstract: A waste heat recovery unit includes a duct for hot gas. The duct is divided into first, second and third adjacent and parallel channels each with an inlet and an outlet. A heat exchanger is located in each of the first and third channels. The second channel is located between the first and third channels and provides a bypass channel. A damper system is operable to selectively open and close the inlets of the three channels. This provides a more compact waste heat recovery unit configuration which is more straightforward to manufacture and maintain.
    Type: Application
    Filed: March 10, 2014
    Publication date: May 26, 2016
    Inventor: David Champneys