Patents by Inventor Dan L. Johnson

Dan L. Johnson 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).

  • Oven door choke with contamination barrier
    Patent number: 5789724
    Abstract: An oven door has an RF choke, an outer choke cover, first and second inner choke cover members, and a contaminant barrier The RF choke has a first side which is oriented away from a cooking chamber of an oven, and the RF choke has a second side which is oriented toward a cooking chamber of an oven. The outer choke cover abuts the first side of the RF choke. The first inner choke cover member has a gasket, and the first inner choke cover member is microwave safe. The contaminant barrier abuts the gasket of the first inner choke cover member. The second inner choke cover member abuts the contaminant barrier so that the contaminant barrier is sandwiched between the first and second inner choke cover members. The second inner choke cover member is microwave safe.
    Type: Grant
    Filed: July 30, 1996
    Date of Patent: August 4, 1998
    Assignee: Amana Company L.P.
    Inventors: Ben D. Lerssen, Dan L. Johnson, John D. Robeson, Larry M. Engebritson, Will D. Taber