Patents by Inventor Gert-Ove Gustafsson

Gert-Ove Gustafsson 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 for the production of a compound for increasing of frost-resistance of hardened concrete and the compound thus produced
    Patent number: 5024703
    Abstract: Compound intended to be added to concrete mass for entraining air in the concrete, thus increasing frost-resistance of the hardened concrete. The compound consists of: cereal storage proteins from wheat, triticale, barley or rye; a reducing agent preferably in the form of FeSO.sub.4 in an amount adapted to the original properties of the cereal storage proteins to entrain air in the concrete mass during its mixing; an inert substance, preferably Portland cement or mineral powder in an amount adapted to the original capacity of the cereal storage proteins to entrain air in the concrete. By means of the reducing agent and the inert substance the compound is normalized to its effect to entrain air in the concrete irrespective of said original properties and capacity of the cereal storage proteins to entrain air in the concrete.
    Type: Grant
    Filed: July 19, 1989
    Date of Patent: June 18, 1991
    Assignee: Multistructure Sweden AB
    Inventors: Gert-Ove Gustafsson, Leif Berntsson, K.ang.re Larsson