Patents by Inventor Zdenek Kalab

Zdenek Kalab 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).

  • Apparatus for the radial shaping of tubular articles
    Patent number: 4434645
    Abstract: Apparatus for radial shaping of rotors, stators, crankshafts, spindles and the like from an elongate seamless tube where a supporting ring performing a reciprocating motion according to an adjustable stroke of a connecting rod causes by way of rollers and guiding segments a reduction and increase of the radial distance of sliding shoes with forming jaws with respect to the formed object.
    Type: Grant
    Filed: July 29, 1981
    Date of Patent: March 6, 1984
    Assignee: SIGMANKoncern
    Inventors: Josef Svercl, Jan Novak, Zdenek Kalab