Patents by Inventor Wilhelm Marfiewicz

Wilhelm Marfiewicz 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: 3964852
    Abstract: The device is of a type including a multi-part hollow mold mounted in a closure assembly, having a frame and movable in a housing between a blow station and a plasticating unit, on relatively movable mold platens carried by two supporting bars extending below the hollow mold in the closure assembly. A locking mechanism is provided on the upper parts of the mold platens and comprises a locking bush firmly secured to one mold platen and a locking rod rotatably mounted in the other mold platen but fixed against axial displacement relative thereto. The locking rod has a lock head, designed as a symmetric hammer head, adapted to lockingly engage in the locking bush which has an opening conformable to the hammer head and formed with diametrically opposite catch webs, the hammer head having faces adapted to engage behind the catch webs upon rotation of the locking rod.
    Type: Grant
    Filed: September 30, 1975
    Date of Patent: June 22, 1976
    Assignee: Emil Korsch Spezialfabrik fur Komprimiermaschinen
    Inventor: Wilhelm Marfiewicz