Patents by Inventor Markku Vesa

Markku Vesa 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: 4362417
    Abstract: The invention relates to an extension joint for concrete piles of the type in which at least one pin in a first pile penetrates into a recess in a second pile. The end of the pin is provided with a shoulder and is locked in the second pile by means of a wedge having shanks each engaging one side of the pin. The wedge is locked in its driven-in position while being driven in by the bending of the shanks towards each other after they have passed the pin.
    Type: Grant
    Filed: April 22, 1980
    Date of Patent: December 7, 1982
    Inventors: Markku Vesa, Matti Kaimo