Patents by Inventor Thomas F. Pedersen

Thomas F. 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).

  • Cooking surface with optimized distance between induction coil and cooking vessel
    Patent number: 6051821
    Abstract: A cooking surface has a thickness between 0.05 and 3.0 mm to optimize between highest efficiency, lowest magnetic stray field, and desired surface material. In the thickness range of 0.05 to 0.2 mm, a top layer may consist of plasma sprayed hard ceramic such as alumina which can be impregnated with poly-tetra-fluor-ethylene. In the thickness range of 0.2 to 2.0 mm, the top layer may consist of glass fibre reinforced material which can be impregnated with poly-tetra-fluor-ethylene and can be of a hardened quality. In the thickness range of 1.00 to 3.00 mm, the top layer may consist of a vitroceramic or glass material.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: April 18, 2000
    Assignee: Aktiebolaget Electrolux
    Inventors: Jan E. Dahl, Thomas F. Pedersen