Patents by Inventor Toralf KÄCKENMEISTER

Toralf KÄCKENMEISTER 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: 11014605
    Abstract: A hydraulic steering device hydraulically connects a steering cylinder to a supply system, wherein the supply system can be operatively connected hydraulically to the steering cylinder via a steering valve in order to configure a main flow connection, and the supply system can be operatively connected hydraulically to the steering cylinder via a flow control valve arrangement in order to configure an auxiliary flow connection which bypasses the main flow direction.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: May 25, 2021
    Assignee: DANFOSS POWER SOLUTIONS PARCHIM GMBH
    Inventors: Erhard Bergmann, Toralf Käckenmeister, Markus De La Motte, Steffen Janetzki
  • Patent number: 10899382
    Abstract: The invention relates to a hydraulic steering device that hydraulically connects a steering cylinder to a supply system, whereby the supply system is hydraulically operatively connectable to the steering cylinder via a steering valve to form a main flow connection and the supply system is hydraulically operatively connectable to the steering cylinder via a flow regulation valve arrangement to form a branch flow connection that circumvents the main flow connection, whereby the flow regulation valve arrangement is triggerable by an electric control unit and the flow regulation valve arrangement comprises valve groups that are triggerable individually, which are respectively connected in the forward flow and return flow of the branch flow connection and a release-shutoff valve is assigned to the flow regulation valve arrangement. It is provided that the release-shutoff valve is connected between the flow regulation valve arrangement and the steering cylinder.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: January 26, 2021
    Assignee: DANFOSS POWER SOLUTIONS PARCHIM GMBH
    Inventors: Erhard Bergmann, Toralf Käckenmeister, Markus de la Motte
  • Patent number: 10829148
    Abstract: A hydraulic steering device which hydraulically connects a steering cylinder to a supply system. The supply system is hydraulically operatively connectable to the steering cylinder via a steering assembly for the purposes of forming a main flow connection, and the supply system is furthermore hydraulically operatively connectable to the steering cylinder via a flow regulating valve arrangement, such that a secondary flow connection can be formed which bypasses the main flow connection and via which at least one first working chamber and one second working chamber of the steering cylinder can be supplied independently of one another with hydraulic fluid.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: November 10, 2020
    Assignee: DANFOSS POWER SOLUTIONS PARCHIM GMBH
    Inventors: Erhard Bergmann, Toralf Käckenmeister, Markus De La Motte
  • Publication number: 20190111967
    Abstract: The invention relates to a hydraulic steering device that hydraulically connects a steering cylinder to a supply system, whereby the supply system is hydraulically operatively connectable to the steering cylinder via a steering valve to form a main flow connection and the supply system is hydraulically operatively connectable to the steering cylinder via a flow regulation valve arrangement to form a branch flow connection that circumvents the main flow connection, whereby the flow regulation valve arrangement is triggerable by an electric control unit and the flow regulation valve arrangement comprises valve groups that are triggerable individually, which are respectively connected in the forward flow and return flow of the branch flow connection and a release-shutoff valve is assigned to the flow regulation valve arrangement. It is provided that the release-shutoff valve is connected between the flow regulation valve arrangement and the steering cylinder.
    Type: Application
    Filed: September 26, 2018
    Publication date: April 18, 2019
    Applicant: HYDRAULIK NORD FLUIDTECHNIK GMBH & CO. KG
    Inventors: Erhard BERGMANN, Toralf KÄCKENMEISTER, Markus de la MOTTE
  • Publication number: 20190002018
    Abstract: A hydraulic steering device which hydraulically connects a steering cylinder to a supply system. The supply system is hydraulically operatively connectable to the steering cylinder via a steering assembly for the purposes of forming a main flow connection, and the supply system is furthermore hydraulically operatively connectable to the steering cylinder via a flow regulating valve arrangement, such that a secondary flow connection can be formed which bypasses the main flow connection and via which at least one first working chamber and one second working chamber of the steering cylinder can be supplied independently of one another with hydraulic fluid.
    Type: Application
    Filed: March 1, 2017
    Publication date: January 3, 2019
    Applicant: HYDRAULIK NORD FLUIDTECHNIK GMBH & CO. KG
    Inventors: Erhard BERGMANN, Toralf KÄCKENMEISTER, Markus DE LA MOTTE
  • Publication number: 20180362072
    Abstract: A hydraulic steering device hydraulically connects a steering cylinder to a supply system, wherein the supply system can be operatively connected hydraulically to the steering cylinder via a steering valve in order to configure a main flow connection, and the supply system can be operatively connected hydraulically to the steering cylinder via a flow control valve arrangement in order to configure an auxiliary flow connection which bypasses the main flow direction.
    Type: Application
    Filed: November 25, 2016
    Publication date: December 20, 2018
    Applicant: HYDRAULIK NORD FLUIDTECHNIK GMBH & CO. KG
    Inventors: Erhard BERGMANN, Toralf KÄCKENMEISTER, Markus DE LA MOTTE, Steffen JANETZKI