Patents by Inventor Jan A. C. Gustafsson

Jan A. C. Gustafsson 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).

  • Patent number: 4645892
    Abstract: A sealing arrangement for microwave ovens, comprising an attenuation choke (20) extending around an access opening to an oven cavity and arranged either in the cavity wall portion surrounding the access opening or in the rim portions of a door (19) closing the opening. The choke (20) has a generally G-shaped profile, the horizontal inner leg of the G forming a partition wall (23) in the choke. The partition wall (23) on one side bounds an entrance opening (26) to the choke and on the other side is contiguous with a wall forming a short-circuiting wall (24) and at the same time bounds an outer portions of the gap between the door and the cavity walls. Either the partition wall (23), or the short-circuiting wall (24), or both, are provided with slots (25) extending transversely to the circumference of the door (19) or access opening.
    Type: Grant
    Filed: March 12, 1984
    Date of Patent: February 24, 1987
    Assignee: U.S. Philips Corporation
    Inventor: Jan A. C. Gustafsson