Patents by Inventor Ben Wirkkala

Ben Wirkkala 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: 4333675
    Abstract: A connector for securing a choker cable to a main line cable. The main line cable is fastened to a cylindrical ferrule having an axial bore through which the end of the cable passes. The bore tapers inwardly away from the end of the cable and receives a pair of semi-cylindrical nubbins having a taper matching the taper of the bore. The nubbins are positioned between the cable and the walls of the bore, and the wedging action of the nubbins with the cable and the ferrule securely fastens the cable to the ferrule yet allows the ferrule to be easily released from the cable. A generally U-shaped shackle is rotatably secured to the ferrule by a pair of pins projecting diametrically from the ferrule into respective bores formed in opposite legs of the shackle. One or more choker cables are fastened to the shackle by loops formed at the ends of the choker cables which surround the curved portion of the shackle.
    Type: Grant
    Filed: January 4, 1980
    Date of Patent: June 8, 1982
    Inventor: Ben Wirkkala