Patents by Inventor Dennis Zahn

Dennis Zahn 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: 12338947
    Abstract: A lubrication system includes a progressive distributor that is configured to dispense lubricant to a consumer. The lubrication system also includes a control device and at least one sensor that is configured to determine at least one lubricant pressure inside the lubrication system. The control device is configured to receive measured values from the at least one sensor and to recognize a lubrication cycle based on the measured values and also to determine an average pressure of the lubrication cycle, to perform a comparison of the average pressure and at least one normal pressure of the lubrication system, and to determine a state of the lubrication system based on a result of the comparison.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: June 24, 2025
    Assignee: SKF LUBRICATION SYSTEMS GERMANY GMBH
    Inventors: Dieter Hess, Juergen Kreutzkaemper, Markus Mandera, Andreas Schoenfeld, Stefan Schuermann, Dennis Zahn
  • Patent number: 12253211
    Abstract: A lubrication system includes a progressive distributor and at least one pressure sensor. The progressive distributor includes a housing block having a lubricant inlet, a plurality of lubricant outlets, a plurality of piston bores fluidically connected to the lubricant inlet, each of the plurality of piston bores having a first outlet bore and a second outlet bore, and a metering piston in each of the plurality of piston bores. Each of the metering pistons is displaceable in a respective one of the plurality of outlet bores to uncover either the first outlet bore or the second outlet bore. The pressure sensor is disposed at an inlet of the progressive distributor upstream of the metering pistons with respect to a lubricant flow direction and configured to determine a lubricant pressure.
    Type: Grant
    Filed: April 25, 2022
    Date of Patent: March 18, 2025
    Assignee: SKF LUBRICATION SYSTEMS GERMANY GMBH
    Inventors: Juergen Kreutzkaemper, Dieter Hess, Markus Mandera, Andreas Schoenfeld, Stefan Schuermann, Dennis Zahn
  • Patent number: 12196366
    Abstract: A progressive distributor for lubricant includes a housing block. The housing block includes a lubricant inlet bore, via which receives lubricant, and a plurality of lubricant outlets, via which a metered amount of lubricant is dispensable. A plurality of metering pistons are provided in the housing block for the dispensing of the metered amount of lubricant. The metering pistons are received in associated piston bores. Each piston bore is associated with two lubricant outlets. Each metering piston is displaceable in the piston bore and is configured to alternatingly dispense the metered amount of lubricant to the one or the other lubricant outlet. The piston bores are fluidically connected to the lubricant-inlet bore and to each other via connecting bores to transfer lubricant to the other piston bores. The piston bore includes a first region configured to receive the metering piston and a second region configured as the lubricant outlet.
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: January 14, 2025
    Assignee: SKF Lubrication Systems Germany GmbH
    Inventors: Jürgen Kreutzkämper, Andreas Schönfeld, Dennis Zahn
  • Publication number: 20240230027
    Abstract: A progressive distributor for lubricant includes a housing block. The housing block includes a lubricant inlet bore, via which receives lubricant, and a plurality of lubricant outlets, via which a metered amount of lubricant is dispensable. A plurality of metering pistons are provided in the housing block for the dispensing of the metered amount of lubricant. The metering pistons are received in associated piston bores. Each piston bore is associated with two lubricant outlets. Each metering piston is displaceable in the piston bore and is configured to alternatingly dispense the metered amount of lubricant to the one or the other lubricant outlet. The piston bores are fluidically connected to the lubricant-inlet bore and to each other via connecting bores to transfer lubricant to the other piston bores. The piston bore includes a first region configured to receive the metering piston and a second region configured as the lubricant outlet.
    Type: Application
    Filed: February 14, 2022
    Publication date: July 11, 2024
    Inventors: Jürgen KREUTZKÄMPER, Andreas SCHÖNFELD, Dennis ZAHN
  • Publication number: 20240200721
    Abstract: A lubrication system includes a progressive distributor that is configured to dispense lubricant to a consumer. The lubrication system also includes a control device and at least one sensor that is configured to determine at least one lubricant pressure inside the lubrication system. The control device is configured to receive measured values from the at least one sensor and to recognize a lubrication cycle based on the measured values and also to determine an average pressure of the lubrication cycle, to perform a comparison of the average pressure and at least one normal pressure of the lubrication system, and to determine a state of the lubrication system based on a result of the comparison.
    Type: Application
    Filed: April 25, 2022
    Publication date: June 20, 2024
    Applicant: SKF LUBRICATION SYSTEMS GERMANY GMBH
    Inventors: Dieter Hess, Juergen Kreutzkaemper, Markus Mandera, Andreas Schoenfeld, Stefan Schuermann, Dennis Zahn
  • Publication number: 20240200719
    Abstract: A lubrication system includes a progressive distributor and at least one pressure sensor. The progressive distributor includes a housing block having a lubricant inlet, a plurality of lubricant outlets, a plurality of piston bores fluidically connected to the lubricant inlet, each of the plurality of piston bores having a first outlet bore and a second outlet bore, and a metering piston in each of the plurality of piston bores. Each of the metering pistons is displaceable in a respective one of the plurality of outlet bores to uncover either the first outlet bore or the second outlet bore. The pressure sensor is disposed at an inlet of the progressive distributor upstream of the metering pistons with respect to a lubricant flow direction and configured to determine a lubricant pressure.
    Type: Application
    Filed: April 25, 2022
    Publication date: June 20, 2024
    Inventors: Juergen Kreutzkaemper, Dieter Hess, Markus Mandera, Andreas Schoenfeld, Stefan Schuermann, Dennis Zahn
  • Publication number: 20240133517
    Abstract: A progressive distributor for lubricant includes a housing block. The housing block includes a lubricant inlet bore, via which receives lubricant, and a plurality of lubricant outlets, via which a metered amount of lubricant is dispensable. A plurality of metering pistons are provided in the housing block for the dispensing of the metered amount of lubricant. The metering pistons are received in associated piston bores. Each piston bore is associated with two lubricant outlets. Each metering piston is displaceable in the piston bore and is configured to alternatingly dispense the metered amount of lubricant to the one or the other lubricant outlet. The piston bores are fluidically connected to the lubricant-inlet bore and to each other via connecting bores to transfer lubricant to the other piston bores. The piston bore includes a first region configured to receive the metering piston and a second region configured as the lubricant outlet.
    Type: Application
    Filed: February 14, 2022
    Publication date: April 25, 2024
    Inventors: Jürgen KREUTZKÄMPER, Andreas SCHÖNFELD, Dennis ZAHN
  • Patent number: 11898695
    Abstract: A progressive distributor for lubricant includes a housing block having an inlet and a plurality of outlets and a plurality of metering pistons received in associated piston bores in the housing block. Each piston bore is associated with two lubricant outlet bores, and each metering piston is displaceable and configured to alternatingly release the one or the other lubricant outlet bore in order to dispense the metered lubricant amount to the lubricant outlet bore. The piston bores are fluidically connected to the lubricant inlet bore and to each other via connecting bores in order to transfer lubricant to the other piston bores. A dummy piston is disposed in one of the piston bores that permanently closes both the lubricant inlet bore and both lubricant outlet bores, and includes at least one bypass passageway that fluidically connects two of the connecting bores to each other.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: February 13, 2024
    Assignee: SKF LUBRICATION SYSTEMS GERMANY GMBH
    Inventors: Dieter Hess, Juergen Kreutzkaemper, Markus Mandera, Andreas Schoenfeld, Stefan Schuermann, Dennis Zahn
  • Patent number: 11639770
    Abstract: A progressive distributor includes a housing block with an inlet bore and outlet bores and first and second metering pistons in first and second piston bores. Each piston defines first and second annular workspaces and delimits first and second metering spaces at the ends of each piston, the first and second piston bores each having a central axis and being disposed one atop the other so that their central axes are parallel to each other and located in a central plane. Switching bores connect the metering spaces of the first metering piston to the workspaces of the second metering piston, and the switching bores are located on opposite sides of the central plane.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: May 2, 2023
    Assignee: SKF LUBRICATION SYSTEMS GERMANY GMBH
    Inventors: Dieter Hess, Juergen Kreutzkaemper, Markus Mandera, Andreas Schoenfeld, Stefan Schuermann, Dennis Zahn
  • Publication number: 20220107053
    Abstract: A progressive distributor includes a housing block with an inlet bore and outlet bores and first and second metering pistons in first and second piston bores. Each piston defines first and second annular workspaces and delimits first and second metering spaces at the ends of each piston, the first and second piston bores each having a central axis and being disposed one atop the other so that their central axes are parallel to each other and located in a central plane. Switching bores connect the metering spaces of the first metering piston to the workspaces of the second metering piston, and the switching bores are located on opposite sides of the central plane.
    Type: Application
    Filed: September 13, 2021
    Publication date: April 7, 2022
    Inventors: Dieter Hess, Juergen Kreutzkaemper, Markus Mandera, Andreas Schoenfeld, Stefan Schuermann, Dennis Zahn
  • Publication number: 20210317949
    Abstract: A progressive distributor for lubricant includes a housing block having an inlet and a plurality of outlets and a plurality of metering pistons received in associated piston bores in the housing block. Each piston bore is associated with two lubricant outlet bores, and each metering piston is displaceable and configured to alternatingly release the one or the other lubricant outlet bore in order to dispense the metered lubricant amount to the lubricant outlet bore. The piston bores are fluidically connected to the lubricant inlet bore and to each other via connecting bores in order to transfer lubricant to the other piston bores. A dummy piston is disposed in one of the piston bores that permanently closes both the lubricant inlet bore and both lubricant outlet bores, and includes at least one bypass passageway that fluidically connects two of the connecting bores to each other.
    Type: Application
    Filed: March 2, 2021
    Publication date: October 14, 2021
    Inventors: Dieter Hess, Juergen Kreutzkaemper, Markus Mandera, Andreas Schoenfeld, Stefan Schuermann, Dennis Zahn