Patents by Inventor Per Lofstrom

Per Lofstrom 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).

  • Method and apparatus for supplying oxygen gas for fuel combustion
    Patent number: 4421273
    Abstract: Atomized fuel is sprayed in the form of a cone with the apex of the cone in the aperture of the spray device. Oxygen gas is supplied centrally of the cone and the high temperature resulting from oxygen-supported combustion is generated in the internal portion of the cone. Air, or oxygen-enriched air, supports combustion at the outer surface of the cone thus generating lower temperatures at the outer surface. The extreme thermal stresses experienced by surrounding parts of a spray device used for oxygen-supported combustion are thus reduced.
    Type: Grant
    Filed: March 17, 1978
    Date of Patent: December 20, 1983
    Assignee: AGA Aktiebolag
    Inventor: Per Lofstrom