Patents by Inventor Duncan L. Locke

Duncan L. Locke 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).

  • Auxiliary warming device for vehicles
    Patent number: 6024291
    Abstract: An auxiliary warming device includes a hollow enclosed housing with an inlet and outlet port to permit the flow of fluid through the housing. At least the top surface of the housing is thermally conductive, and a baffle is provided within the housing to cause the fluid to flow throughout the entire housing before exiting the outlet port. The auxiliary warming device is installed on a vehicle, and a pair of hoses connect the housing ports to the downstream side of the primary heater in the vehicle, so as to use the warmed fluid from the heater to warm the surface of the auxiliary warming device. A valve is provided to permit the selective bypassing of the auxiliary warming device.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: February 15, 2000
    Inventor: Duncan L. Locke