Patents by Inventor Alfred Berky

Alfred Berky 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).

  • Gear arrangement, especially for a double screw extruder
    Patent number: 6301986
    Abstract: A gear arrangement, especially for a double screw extruder, has a drive shaft and at least one driven element, wherein the driven element is in active connection, at least indirectly, with two intermediate gears driven by the drive shaft and can be driven by them. The intermediate gears (6, 7) are arranged on axles parallel to each other and act on the same driven element (8), wherein the intermediate gears are in mesh with a common distributor gear (5) coupled at least indirectly to the drive shaft (9) and can be driven by this distributor gear. The distributor gear is mounted in bearings so that it can move at least indirectly in the radial direction.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: October 16, 2001
    Assignee: P.I.V. Antrieb Werner Reimers GmbH & Co. KG
    Inventor: Alfred Berky
  • Gear for twin-screw extruder
    Patent number: 6178851
    Abstract: The gear for twin-screw extruders having a first output shaft which is driven by a drive shaft and a second output shaft which is driven by the first output shaft via two side shafts which are arranged on both sides. The shafts are arranged parallel and inside a joint gearbox case which is divided along a vertical junction plane into two gearbox case halves. The junction plane extends between the axes of the two output shafts.
    Type: Grant
    Filed: August 3, 1998
    Date of Patent: January 30, 2001
    Assignee: P.I.V. Antrieb Werner Reimers GmbH & Co. KG
    Inventors: Marion Aumueller, Alfred Berky, Guido Koch, Lothar Thiel