Patents by Inventor Robert Prusak

Robert Prusak 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: 12473948
    Abstract: A lubricant transfer arrangement for a lubricant supply for a transmission includes an outer transmission component, an inner transmission component rotatable relative to the outer transmission component and a plain bearing supporting the outer transmission component on the inner transmission component. A lubricant pocket is formed between the outer transmission component or the inner transmission component and the plain bearing, and a lubricant channel is designed to lead through the outer transmission component, the plain bearing and the inner transmission component to supply a transmission element to be lubricated provided at a downstream end of the lubricant channel. The lubricant channel runs past the lubricant pocket. A leakage groove is formed between the outer transmission component or the inner transmission component and the plain bearing to fluidically connect the lubricant channel to the lubricant pocket.
    Type: Grant
    Filed: August 1, 2023
    Date of Patent: November 18, 2025
    Assignee: Flender GmbH
    Inventors: Mathias Höbing, Robert Prusak
  • Publication number: 20250257762
    Abstract: A lubricant transfer arrangement for a lubricant supply for a transmission includes an outer transmission component, an inner transmission component rotatable relative to the outer transmission component and a plain bearing supporting the outer transmission component on the inner transmission component. A lubricant pocket is formed between the outer transmission component or the inner transmission component and the plain bearing, and a lubricant channel is designed to lead through the outer transmission component, the plain bearing and the inner transmission component to supply a transmission element to be lubricated provided at a downstream end of the lubricant channel, said lubricant channel running past the lubricant pocket. A leakage groove is formed between the outer transmission component or the inner transmission component and the plain bearing to fluidically connect the lubricant channel to the lubricant pocket.
    Type: Application
    Filed: August 1, 2023
    Publication date: August 14, 2025
    Applicant: Flender GmbH
    Inventors: MATHIAS HÖBING, ROBERT PRUSAK
  • Patent number: 11852190
    Abstract: A plain bearing bush includes a cylindrical main body having a first shell surface and a second shell surface. The first and second shell surfaces include a plurality of exchange bores for a lubricant. At least one of the exchange bores has a first diameter on the first shell surface and a second diameter on the second shell surface, with the second diameter being greater than the first diameter for an increase in a load-bearing capability of the plain bearing bush. Two of the exchange bores are arranged in axial spaced-apart relation and connected to one another by a pocket depression.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: December 26, 2023
    Assignee: Flender GmbH
    Inventors: Philipp Leuer, Robert Prusak, Eugen Schlegel
  • Publication number: 20230304531
    Abstract: A plain bearing bush includes a cylindrical main body having a first shell surface and a second shell surface. The first and second shell surfaces include a plurality of exchange bores for a lubricant. At least one of the exchange bores has a first diameter on the first shell surface and a second diameter on the second shell surface, with the second diameter being greater than the first diameter for an increase in a load-bearing capability of the plain bearing bush. Two of the exchange bores are arranged in axial spaced-apart relation and connected to one another by a pocket depression.
    Type: Application
    Filed: September 20, 2021
    Publication date: September 28, 2023
    Applicant: Flender GmbH
    Inventors: Philipp Leuer, ROBERT PRUSAK, EUGEN SCHLEGEL
  • Patent number: 10677331
    Abstract: A vertical mill gearbox includes a drive shaft mounted in a casing for rotation about a rotation axis, and an intermediate shaft configured as a hollow shaft and mounted in the casing for rotation about a vertical second rotation axis. The intermediate shaft has a bevel gear meshing with a bevel-gear pinion of the drive shaft. A torsion shaft is received in fixed rotative engagement with the intermediate shaft and sized to extend beyond the intermediate shaft to define a projecting section to which a sun gear rotatably driven via the intermediate shaft is fixed. A planet carrier is mounted in the casing for rotation about the second rotation axis and rotatably supports an internal gear having an internal tooth system. Mounted to the planet carrier is a rotatable planet gear which meshes with the sun gear and with the internal tooth system of the internal gear.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: June 9, 2020
    Assignee: FLENDER GMBH
    Inventors: Simon Becka, Steffen Brun, Matthias Friedrich, Guido Josten, Robert Prusak, Eugen Schlegel, Dirk Schroer, Michael Tegelkamp, Franz Schmeink
  • Patent number: 10550930
    Abstract: A planet carrier arrangement includes a bearing assembly having first and second roller bearings and a traction element having a first end supported by the bearing assembly such as to enable the traction element to oscillate. A planet carrier is mounted in a suspended manner to the traction element, wherein one of the roller bearings of the bearing assembly is configured to absorb an axial force seeking to lift the planet carrier.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: February 4, 2020
    Assignee: FLENDER GMBH
    Inventors: Simon Becka, Steffen Brun, Matthias Friedrich, Guido Josten, Christoph Messink, Robert Prusak, Eugen Schlegel, Franz Schmeink, Dirk Schroer, Michael Tegelkamp
  • Publication number: 20190003573
    Abstract: A planet carrier arrangement includes a bearing assembly having first and second roller bearings and a traction element having a first end supported by the bearing assembly such as to enable the traction element to oscillate. A planet carrier is mounted in a suspended manner to the traction element, wherein one of the roller bearings of the bearing assembly is configured to absorb an axial force seeking to lift the planet carrier.
    Type: Application
    Filed: June 29, 2018
    Publication date: January 3, 2019
    Applicant: Siemens Aktiengesellschaft
    Inventors: Simon Becka, STEFFEN BRUN, MATTHIAS FRIEDRICH, GUIDO JOSTEN, CHRISTOPH MESSINK, ROBERT PRUSAK, EUGEN SCHLEGEL, FRANZ SCHMEINK, DIRK SCHROER, MICHAEL TEGELKAMP
  • Publication number: 20180363747
    Abstract: A vertical mill gearbox includes a drive shaft mounted in a casing for rotation about a rotation axis, and an intermediate shaft configured as a hollow shaft and mounted in the casing for rotation about a vertical second rotation axis. The intermediate shaft has a bevel gear meshing with a bevel-gear pinion of the drive shaft. A torsion shaft is received in fixed rotative engagement with the intermediate shaft and sized to extend beyond the intermediate shaft to define a projecting section to which a sun gear rotatably driven via the intermediate shaft is fixed. A planet carrier is mounted in the casing for rotation about the second rotation axis and rotatably supports an internal gear having an internal tooth system. Mounted to the planet carrier is a rotatable planet gear which meshes with the sun gear and with the internal tooth system of the internal gear.
    Type: Application
    Filed: June 13, 2018
    Publication date: December 20, 2018
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Simon Becka, Steffen Brun, Matthias Friedrich, Guido Josten, Robert Prusak, Eugen Schlegel, Dirk Schroer, Michael Tegelkamp, Franz Schmeink