Patents by Inventor Olof E. Frisk

Olof E. Frisk 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).

  • Patent number: 4333560
    Abstract: Apparatus is provided for removing particulate material not normally larger than about 0.5 dm.sup.3 in volume such as wood chips, bark, coal, ore, slag, municipal waste or industrial waste, from a pile whose sides are at an angle of at least 40.degree. to the horizontal. The apparatus includes an elongated scraper means arranged for oscillating movement along its longitudinal axis in contact with the sides of the pile from the bottom to the top of the pile for scraping material down from the pile towards approximately ground level where the material is carried by conveying means away from the pile site. The scraper means is carried on a frame arranged for movement along the base of the pile of material and at right angles thereto to selected parts of said pile for scraping material from the pile.
    Type: Grant
    Filed: August 1, 1980
    Date of Patent: June 8, 1982
    Assignee: Mo och Domsjo Aktiebolag
    Inventor: Olof E. Frisk
  • Patent number: 4312441
    Abstract: Apparatus is provided for removing particulate material, such as wood chips, bark, municipal waste or industrial waste, from a pile thereof, comprising a support extending along the base of the pile and a carriage movable on the support along its longitudinal axis. Mounted on the carriage are an elongated scraper for scraping material from the pile, and a conveyor for collecting and carrying away particulate material scraped down from the pile.
    Type: Grant
    Filed: August 1, 1980
    Date of Patent: January 26, 1982
    Assignee: Mo och Domsjo Aktiebolag
    Inventor: Olof E. Frisk