Patents by Inventor Leif V. Gustafson

Leif V. Gustafson 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: 5133623
    Abstract: A process of moving solid waste in pipelines partially filled with fresh or sea water pumped to locations in the Western States where there are many millions of acres of wasteland that could be converted into usable landfills and with a portion, as desired, burned in a waste incinerator plant. In this system, sea water will be used for converting to fresh water for personnel and equipment uses, other portions for a cooling pond for the power plant, a fish hatchery, shrimp farm, and finally a recreation lake.In this venture, principal cost is high. However, operating cost and the many benefits created will greatly offset installation cost. The necessity for a better disposal of solid waste is a must.
    Type: Grant
    Filed: September 16, 1991
    Date of Patent: July 28, 1992
    Inventor: Leif V. Gustafson
  • Patent number: 5117763
    Abstract: A process for elimination of liquid hazardous waste, solid hazardous waste and medical waste. The waste material is incinerated in a rotary furnace to produce a gaseous phase, and a solid phase of non-combustible solids. The gaseous components with suspended particulates are passed to a waste heat boiler for cooling and elimination of some particulates. A mist-producing scrubber further reduces the quantity of particulates in the gases. Finally a chimney with hydrating filters collects and removes any remaining particulates. The invention is a fully closed unit that will emit no particulates into the atmosphere at an efficiency never before realized.
    Type: Grant
    Filed: August 21, 1990
    Date of Patent: June 2, 1992
    Inventor: Leif V. Gustafson