Patents by Inventor Marianne G. Pedersen

Marianne G. Pedersen 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).

  • Solid fuel stoker
    Patent number: 4593629
    Abstract: A tunnel shaped stoker hearth comprises a lower U-shaped portion (42) made conventionally as a double walled steel construction having injection holes (46) for combustion air in the inner wall thereof, and a top portion (48), which is made of a ceramic material, whereby, in operation, the top portion of the tunnel hearth is kept red or white glowing for effective combustion of the fuel and the gases as escaping therefrom.
    Type: Grant
    Filed: July 31, 1984
    Date of Patent: June 10, 1986
    Assignee: Maskinfabrikken Dan-Trim ApS
    Inventors: Marianne G. Pedersen, Michael Vaughan