Patents by Inventor Henrik A. Backman

Henrik A. Backman 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 fixing the ends of concrete columns in concrete bases and device for carrying out said method
    Patent number: 4434600
    Abstract: The invention relates to a method and device for fixing columns in concrete bases. The device is a framed structure which forms a steel basket which is embedded in the concrete base and in which a column is mounted, aligned, wedged underneath and on the sides prior to placing concrete around the column.
    Type: Grant
    Filed: April 6, 1981
    Date of Patent: March 6, 1984
    Inventor: Henrik A. Backman