Patents by Inventor Alfred Risi

Alfred Risi 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).

  • Torsion coiler
    Patent number: 4510782
    Abstract: This invention relates to a lathe for bending and forming metal rods and coiling springs comprising a chuck holding a cylindrical mandrel for rotation, a pick-up pin held on the face of the chuck to hold a portion of a wire in a fixed position on the chuck during rotation, a wire feed guide adjacent the chuck and mandrel and a shut-off control means adapted to stop rotation of the chuck after the wire coiling has advanced to a predetermined linear distance along the mandrel.
    Type: Grant
    Filed: November 2, 1983
    Date of Patent: April 16, 1985
    Inventor: Alfred Risi