Patents by Inventor Roland Holz

Roland Holz 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).

  • Publication number: 20230304561
    Abstract: A switchable hydraulic bearing for mounting of a motor-vehicle assembly comprises a support bearing and a mount connected by a support spring, and a working chamber and an equalization chamber fillable with damping liquid that are spatially separated by a separating wall and connected by a damping channel in the separating wall. The separating wall may comprise a nozzle cage with two adjacent nozzle discs provided with an axial spacing. A diaphragm of rubber-elastic material may be provided in a gap between the nozzle discs. The diaphragm may be switchable by a switching device comprising an elastic lever disc axially adjacent to the second nozzle disc. An electromagnet may connect to the lever disc and can adjust the lever disc between a first position, permitting axial play of the diaphragm in the gap, and a second position, acting on the second nozzle disc and clamping the diaphragm between nozzle discs.
    Type: Application
    Filed: April 14, 2021
    Publication date: September 28, 2023
    Inventors: Wolfgang Beckmann, Roland Holz, Stefan Gölz, Bernhard Röhrig
  • Patent number: 11549566
    Abstract: A hydraulically damping mount for mounting a motor vehicle unit on a motor vehicle body includes a support and a support mount which are interconnected by a support spring made of an elastomeric material. In embodiments, a support spring limits a working chamber which is separated from a compensating chamber by a separating device, wherein the working chamber and the compensating chamber may be filled with a fluid and may be connected to one another via a damping channel included in the separating device, wherein the separating device may include two nozzle discs between which a first membrane and a second membrane are arranged, and wherein one of the membranes has at least one through-hole.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: January 10, 2023
    Assignee: Vibracoustic SE
    Inventors: Roland Holz, Stefan Gölz, Robert Jambor, Tina Heilmann
  • Patent number: 11215262
    Abstract: A hydraulic bearing for supporting an assembly of a motor vehicle includes a carrying bearing portion and a support portion. In embodiments, a working chamber that is fillable with hydraulic fluid is formed in the carrying bearing portion, and a compensating chamber that is fillable with hydraulic fluid is formed in the support portion. A nozzle disc, through which the flow can pass and which delimits the working chamber from the compensating chamber, may be arranged between the carrying bearing portion and the support portion, and a damping duct for the fluidic communication of the working chamber with the compensating chamber may be formed in the nozzle disc. In embodiments, the two chambers, the damping duct, and the hydraulic fluid may form a first damping system for damping vibrations of lower frequencies and a second damping system may be formed for damping vibrations of higher frequencies.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: January 4, 2022
    Assignee: Vibracoustic SE
    Inventors: Mark Lünebach, Roland Holz
  • Publication number: 20210033166
    Abstract: A hydraulically damping mount for mounting a motor vehicle unit on a motor vehicle body includes a support and a support mount which are interconnected by a support spring made of an elastomeric material. In embodiments, a support spring limits a working chamber which is separated from a compensating chamber by a separating device, wherein the working chamber and the compensating chamber may be filled with a fluid and may be connected to one another via a damping channel included in the separating device, wherein the separating device may include two nozzle discs between which a first membrane and a second membrane are arranged, and wherein one of the membranes has at least one through-hole.
    Type: Application
    Filed: December 21, 2018
    Publication date: February 4, 2021
    Inventors: Roland Holz, Stefan Gölz, Robert Jambor, Tina Heilmann
  • Publication number: 20200182328
    Abstract: A hydraulic bearing for supporting an assembly of a motor vehicle includes a carrying bearing portion and a support portion. In embodiments, a working chamber that is fillable with hydraulic fluid is formed in the carrying bearing portion, and a compensating chamber that is fillable with hydraulic fluid is formed in the support portion. A nozzle disc, through which the flow can pass and which delimits the working chamber from the compensating chamber, may be arranged between the carrying bearing portion and the support portion, and a damping duct for the fluidic communication of the working chamber with the compensating chamber may be formed in the nozzle disc. In embodiments, the two chambers, the damping duct, and the hydraulic fluid may form a first damping system for damping vibrations of lower frequencies and a second damping system may be formed for damping vibrations of higher frequencies.
    Type: Application
    Filed: February 16, 2018
    Publication date: June 11, 2020
    Inventors: Mark Lünebach, Roland Holz
  • Patent number: 6756966
    Abstract: A display device, especially for a motor vehicle, includes a display unit a display controller and at least one control unit, with which the image format of the display unit can be controlled. The display unit is configured such that it can be moved to enable different display fields to be viewed.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: June 29, 2004
    Assignee: Volkswagen AG
    Inventors: Susanne Dirksen, Roland Holz, Christof Oelrich
  • Patent number: 6506136
    Abstract: A continuously variable transmission wherein each of two parallel shafts carries a pulley having a fixed flange and a second flange movable axially of the shaft toward and away from the respective fixed flange. An endless torque transmitting chain or belt is trained over the two pulleys. At least one flange of at least one of the pulleys is assembled of two or more parts which consist of sheet metal and are welded and/or otherwise affixed to each other.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: January 14, 2003
    Assignee: LuK Geriebe-Systeme GmbH
    Inventors: Jochen Schmid, Rainer Eidloth, Carsten Weinhold, Roland Hölz, Bernhard Walter
  • Publication number: 20020041273
    Abstract: A display device, especially for a motor vehicle, includes a display unit a display controller and at least one control unit, with which the image format of the display unit can be controlled. The display unit is configured such that it can be moved to enable different display fields to be viewed.
    Type: Application
    Filed: December 6, 2001
    Publication date: April 11, 2002
    Inventors: Susanne Dirksen, Roland Holz, Christof Oelrich
  • Publication number: 20010031678
    Abstract: A continuously variable transmission wherein each of two parallel shafts carries a pulley having a fixed flage and a second flange movable axially of the shaft toward and away from the respective fixed flange. An endless torque transmitting chain or belt is trained over the two pulleys. At least one flange of at least one of the pulleys is assembled of two or more parts which consist of sheet metal and are welded and/or otherwise affixed to each other.
    Type: Application
    Filed: May 7, 2001
    Publication date: October 18, 2001
    Applicant: LUK GETRIEBE-SYSTEME GMBH
    Inventors: Jochen Schmid, Rainer Eidloth, Carsten Weinhold, Roland Holz, Bernhard Walter
  • Patent number: 6241635
    Abstract: A continuously variable transmission wherein each of two parallel shafts carries a pulley having a fixed flange and a second flange movable axially of the shaft toward and away from the respective fixed flange. An endless torque transmitting chain or belt is trained over the two pulleys. At least one flange of at least one of the pulleys is assembled of two or more parts which consist of sheet metal and are welded and/or otherwise affixed to each other.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: June 5, 2001
    Assignee: LuK Getriebe-Systeme GmbH
    Inventors: Jochen Schmid, Rainer Eidloth, Carsten Weinhold, Roland Hölz, Bernhard Walter