Patents by Inventor Stefan Klimenta

Stefan Klimenta 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).

  • Screw centrifuge with auxiliary outer screw flight for wet mechanical separation of solids
    Patent number: 10213791
    Abstract: A screw centrifuge has a rotating, cylindrical drum (11) with openings (14,15) for discharge of settleable solids (16), floating solids (17), and separating liquid (18). A rotatable shaft (12) has openings (22) for infeed of the solids to be separated, and two sections of screw flights (13,13?,13?,23,23?) working in opposite directions. A baffle disc (20) is arranged on the shaft between the infeed opening (22) and the discharge opening (14) for the settleable solids (16). The flight (13?,13?) of the screw for the settleable solids (16) surrounds the flight (23,23?) of the screw for the floating solids (17), and also work in opposite directions. The screw section for the floating solids (17) is designed as a multi-channel screw. The outer flight (13?,13?) of the screw for the settleable solids (16) can also have several channels.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: February 26, 2019
    Assignee: Andritz Technology and Asset Management GmbH
    Inventors: Stefan Klimenta, Johann Franc
  • SCREW CENTRIFUGE FOR WET MECHANICAL SEPARATION OF SOLIDS
    Publication number: 20170304846
    Abstract: A screw centrifuge has a rotating, cylindrical drum (11) with openings (14,15) for discharge of settleable solids (16), floating solids (17), and separating liquid (18). A rotatable shaft (12) has openings (22) for infeed of the solids to be separated, and two sections of screw flights (13,13?,13?,23,23?) working in opposite directions. A baffle disc (20) is arranged on the shaft between the infeed opening (22) and the discharge opening (14) for the settleable solids (16). The flight (13?,13?) of the screw for the settleable solids (16) surrounds the flight (23,23?) of the screw for the floating solids (17), and also work in opposite directions. The screw section for the floating solids (17) is designed as a multi-channel screw. The outer flight (13?,13?) of the screw for the settleable solids (16) can also have several channels.
    Type: Application
    Filed: April 24, 2017
    Publication date: October 26, 2017
    Applicant: ANDRITZ Technology and Asset Management GmbH
    Inventors: Stefan Klimenta, Johann Franc