Patents by Inventor John H. Wakefield

John H. Wakefield 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).

  • Multi-stage catalyst for a cooking appliance
    Patent number: 6872919
    Abstract: A convection cooking appliance includes an oven cavity in communication with an air channel assembly incorporating a catalyst. The catalyst includes multiple stages defined by first and second, spaced honeycomb structures. The first honeycomb structure is arranged to initially vaporize the carbon cooking byproducts which then directed to the second honeycomb structure wherein the vaporized byproducts are broken down into carbon dioxide and water prior to being expelled from the catalyst. Between the first and second honeycomb structures is a gap which functions to create a turbulence for the delivery of the vapor to the second honeycomb structure.
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: March 29, 2005
    Assignee: Maytag Corporation
    Inventors: John H. Wakefield, John Scott Brown, Robert Z. Whipple, Jr.
  • Multi-stage catalyst for a cooking appliance
    Publication number: 20030116555
    Abstract: A convection cooking appliance includes an oven cavity in communication with an air channel assembly incorporating a catalyst. The catalyst includes multiple stages defined by first and second, spaced honeycomb structures. The first honeycomb structure is arranged to initially vaporize the carbon cooking byproducts which then directed to the second honeycomb structure wherein the vaporized byproducts are broken down into carbon dioxide and water prior to being expelled from the catalyst. Between the first and second honeycomb structures is a gap which functions to create a turbulence for the delivery of the vapor to the second honeycomb structure.
    Type: Application
    Filed: February 13, 2003
    Publication date: June 26, 2003
    Applicant: Maytag Corporation
    Inventors: John H. Wakefield, John Scott Brown, Robert Z. Whipple