Patents by Inventor Kristina E. I. Axgarde

Kristina E. I. Axgarde 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).

  • Pile connecting device
    Patent number: 4143985
    Abstract: A connecting device is described in which two complementary connecting elements comprise several interengaging locking portions with holes for driving pins thereinto to interlock the connecting elements, and spaces inside the locking portions to permit continued driving of the pins thereinto to thereby realize unlocking of the connecting elements.
    Type: Grant
    Filed: September 13, 1977
    Date of Patent: March 13, 1979
    Assignee: AB Castings
    Inventors: Gunborg H. V. Axelsson, Kristina E. I. Axgarde