Patents by Inventor Andries Kraak

Andries Kraak 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 of stabilizing the soil and preventing erosion
    Patent number: 5125770
    Abstract: The invention relates to a method of stabilizing the soil and preventing erosion. According to the invention such a method is characterized by treating the soil with a mixed product of a pre-gelatinized starch and 0.5-5% by weight, calculated on the dry starch, of a surfactant compound which contains an unbranched saturated alkyl group and is selected from the alkyl sulfates having 10-16 carbon atoms, the alkyl sulfonates having 10-16 carbon atoms and the fatty acid alcohols having 8-12 carbon atoms. The invention also relates to said mixed product.
    Type: Grant
    Filed: October 5, 1990
    Date of Patent: June 30, 1992
    Assignee: Cooperatieve Verkoop- en Productievereniging van Aardappelmeel en Derivaten AVEBE B.A.
    Inventors: Henderik Hesseling, Andries Kraak
  • Binder compositions
    Patent number: 4070196
    Abstract: The breakdown properties of silicate bonded foundry sand moulds and cores can be improved by including with the silicate binder a starch hydrolysate having a dextrose equivalent of less than 5.
    Type: Grant
    Filed: August 31, 1976
    Date of Patent: January 24, 1978
    Assignees: Foseco International Limited, Co-operative Verkoap-en Productievereiniging van Aardappelmeel en Derivaten "Avebe" G.A.
    Inventors: Andries Kraak, Raymond Douglas George