Patents by Inventor Christopher James Maifield

Christopher James Maifield 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).

  • Under-hood engine air intake system
    Patent number: 7204329
    Abstract: An engine air intake system includes an engine air intake device and a plenum cooling compartment that is separate from the engine compartment by a baffle. A fan draws outside ambient air into the plenum cooling compartment and out of the plenum cooling area via a heat exchanger. The cooling compartment is designed such that a distance between the heat exchanger and the baffle provides a gap from which the engine air intake device removes ambient air as a source for engine air. An option is provide for the system to withdraw outside ambient air from an area external to the plenum cooling compartment in high debris environments.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: April 17, 2007
    Assignee: Deere & Company
    Inventors: Jesse Lee Pfohl, Christopher James Maifield, Douglas Gerard Meyer, Daniel Joseph Huegerich, Gregory Keith Werner