Patents by Inventor Hermann Etnestad

Hermann Etnestad 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).

  • Arrangement in incinerator
    Patent number: 4303022
    Abstract: The constriction plate in a fluidized bed incinerator is pivotally mounted for swinging movement down into the windbox. Thereby, the fluidized bed can be rapidly emptied into the windbox, whereby heat sensitive members in the incinerator will not be damaged by the hot refractory particles in the bed.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: December 1, 1981
    Assignee: O. Mustad & Son
    Inventors: Hermann Etnestad, Sverre Laugerud
  • Arrangement in incinerator
    Patent number: 4257336
    Abstract: A fluidized bed incinerator is split along horizontal planes into three parts, viz. an upper part, an annular section comprising the region in which the fluidized bed and any pipe coils for cooling the bed are situated, and an underlying windbox. The annular middle section can be readily replaced simply by moving the upper part and the windbox apart, horizontally withdrawing the annular section and inserting a new section. During operation of the incinerator the three parts are clamped together.
    Type: Grant
    Filed: February 16, 1979
    Date of Patent: March 24, 1981
    Assignee: O. Mustad & Son A/S
    Inventors: Hermann Etnestad, Sverre Laugerud