Patents by Inventor Arne Carlsen

Arne Carlsen 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: 5445663
    Abstract: The present invention relates to a fertilizer composition comprising solution or dispersion of nutrient compounds and method for its manufacture. The solution/dispersion constitutes the discontinuous phase of a water-in-oil type (w-i-o) emulsion having a volume phase ratio, discontinuous phase: total volume in the range of 0.80-0.95. The fertilizer composition may additionally contain 0-60 weight % solid nutrient salts and/or urea. The oil or hydrocarbon component of the w-i-o emulsion comprises mineral, vegetable or animal oils, wax or mixture of these, and the emulsion comprises at least one w-i-o emulsifier. The hydrocarbon component may also contain 0.5-6 weight % of elastomer, preferably polyisobutylene. The method comprises dissolving or dispersing the nutrient compounds at a temperature of 5.degree.-15.degree. C.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: August 29, 1995
    Assignee: Norsk Hydro a.s.
    Inventors: Arne Carlsen, Erik C. Nygaard, Erik Syrstad, Tom Consoli
  • Patent number: 4992119
    Abstract: The present invention relates to a HANFO explosive consisting of a mixture of at least one nitrate-oil explosive (ANFO-type) and at least one water-in-oil explosive, and a method for its manufacture. The oil of the ANFO part contains 0.3-7.0 weight % based on the weight of the oil component of the oilsoluble elastomer having a viscosity average molecular weight of 30,000-5 million, preferably 900,000-2.5 million. The manufacture of the HANFO explosive can be carried out by first adding an oilsoluble elastomer to the oil of the ANFO-type explosive, then mixing the oil with sodium-, ammonium- and/or calcium nitrate and then mixing this mixture together with a water-in-oil emulsion explosive. The HANFO explosive can be applied both in bulk and cartridged form.
    Type: Grant
    Filed: March 27, 1990
    Date of Patent: February 12, 1991
    Assignee: Norsk Hydro a.s.
    Inventors: Arne Carlsen, Erik C. Nygaard