Patents by Inventor James N. Hansen

James N. Hansen 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).

  • Firehouse exhaust system
    Patent number: 6306031
    Abstract: An exhaust recovery system vents exhaust from an exhaust pipe of a vehicle, located in an enclosed structure, as the vehicle is driven out of the structure. The system includes a coupling attached to a detachably connectable coupling support assembly to support the coupling proximate the vehicle exhaust pipe. An elongate flexible hose has a first end and a second end, where the first end of the hose is connected to the coupling. The second end of the hose is connected to an extendable assembly. A first member is interconnected between the support assembly and the extendable assembly that when tensioned as a result of the vehicle being driven out of the structure extends the extendable assembly.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: October 23, 2001
    Assignee: Energy Savings Products
    Inventors: Harold W. Hansen, Jerald W. Hansen, James N. Hansen