Patents by Inventor Harry E. Grimstedt

Harry E. Grimstedt 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).

  • Convector for heating rooms
    Patent number: 4073045
    Abstract: There is provided a convector for heating rooms and a method for manufacturing same. This convector comprises a plastic tube wound to form a flat coil. The plastic used for the tube is preferably a cross-linked plastic, such as cross-linked polyethylene. Some of the coil-turns may be displaced inwards or outwards from the basic shape of the tube coil, in order to improve the convection.
    Type: Grant
    Filed: April 25, 1975
    Date of Patent: February 14, 1978
    Assignee: Aktiebolaget Atomenergi
    Inventors: Peter H. E. Margen, Harry E. Grimstedt, Jan A. Bosaeus