Patents by Inventor Bernd Gaertner

Bernd Gaertner 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).

  • Cylinder drum of a hydrostatic axial piston machine having a wear-resistant layer
    Patent number: 10281042
    Abstract: A method is provided for forming wear-resistant layer on the surface of cylinder bores a cylinder drum of a hydrostatic axial piston machine within which a respective piston is moved in a manner subject to intensive wear. The cylinder bores are gas nitrocarburized in two stages to minimize the wear and include a thin uniform connecting layer that has a thickness of 4 to 16 ?m and a comparatively thick underlying diffusion layer.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: May 7, 2019
    Assignee: Robert Bosch GmbH
    Inventor: Bernd Gaertner
  • Method for gas carbonitriding
    Patent number: 9970093
    Abstract: A method of forming a wear protection layer for a machine component that forms a slide pairing with a further machine component includes gas-carbonitriding at least one of the machine components in order to minimize wear. The gas-carbonitriding includes forming a thin uniform bonding layer and a comparatively thick diffusion layer thereunder. The gas-carbonitriding is performed at a low temperature and for a long duration.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: May 15, 2018
    Assignee: Robert Bosch GmbH
    Inventor: Bernd Gaertner
  • CYLINDER DRUM OF A HYDROSTATIC AXIAL PISTON MACHINE HAVING A WEAR-RESISTANT LAYER
    Publication number: 20170343107
    Abstract: A method is provided for forming wear-resistant layer on the surface of cylinder bores a cylinder drum of a hydrostatic axial piston machine within which a respective piston is moved in a manner subject to intensive wear. The cylinder bores are gas nitrocarburized in two stages to minimize the wear and include a thin uniform connecting layer that has a thickness of 4 to 16 ?m and a comparatively thick underlying diffusion layer.
    Type: Application
    Filed: August 17, 2017
    Publication date: November 30, 2017
    Inventor: Bernd Gaertner
  • Cylinder Drum of a Hydrostatic Axial Piston Machine having a Wear-Resistant Layer
    Publication number: 20150167653
    Abstract: A cylinder drum of a hydrostatic axial piston machine has a plurality of cylinder bores formed in the cylinder drum. A respective piston is moved in each of the cylinder bores in a manner subject to intensive wear. The cylinder bores are nitrocarburized in a salt bath or in gas to minimize the wear and include a thin uniform connecting layer that has a thickness of 4 to 16 ?m and a comparatively thick underlying diffusion layer.
    Type: Application
    Filed: December 15, 2014
    Publication date: June 18, 2015
    Inventor: Bernd Gaertner
  • Method for Gas Carbonitriding
    Publication number: 20150167145
    Abstract: A method of forming a wear protection layer for a machine component that forms a slide pairing with a further machine component includes gas-carbonitriding at least one of the machine components in order to minimize wear. The gas-carbonitriding includes forming a thin uniform bonding layer and a comparatively thick diffusion layer thereunder. The gas-carbonitriding is performed at a low temperature and for a long duration.
    Type: Application
    Filed: December 15, 2014
    Publication date: June 18, 2015
    Inventor: Bernd Gaertner