Patents by Inventor Dirk KALKHOFF

Dirk KALKHOFF 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).

  • Ring-rolling machine and method for lifting and lowering the mandrel roll of a ring-rolling machine
    Patent number: 10882097
    Abstract: In a ring-rolling machine having a mandrel roll and a related radial roll, the mandrel roll can be handled in operationally reliable and structurally simple manner if an axial bearing of the mandrel roll is opened by way of an opening drive that does not rotate along with the mandrel roll and/or is closed by inserting the mandrel roll into the axial bearing.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: January 5, 2021
    Assignee: SMS group GmbH
    Inventors: Felix Rodermund-Gebhart, Dirk Kalkhoff
  • Ring-rolling machine and method for lifting and lowering the mandrel roll of a ring-rolling machine
    Patent number: 10722933
    Abstract: In a ring-rolling machine having a mandrel roll and a related radial roll, the mandrel roll can be handled in operationally reliable and structurally simple manner if an axial bearing of the mandrel roll is opened by way of an opening drive that does not rotate along with the mandrel roll and/or is closed by inserting the mandrel roll into the axial bearing.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: July 28, 2020
    Assignee: SMS Group GmbH
    Inventors: Felix Rodermund-Gebhart, Dirk Kalkhoff
  • RING-ROLLING MACHINE AND METHOD FOR LIFTING AND LOWERING THE MANDREL ROLL OF A RING-ROLLING MACHINE
    Publication number: 20190201969
    Abstract: In a ring-rolling machine having a mandrel roll and a related radial roll, the mandrel roll can be handled in operationally reliable and structurally simple manner if an axial bearing of the mandrel roll is opened by way of an opening drive that does not rotate along with the mandrel roll and/or is closed by inserting the mandrel roll into the axial bearing.
    Type: Application
    Filed: March 8, 2019
    Publication date: July 4, 2019
    Applicant: SMS group GmbH
    Inventors: Felix RODERMUND-GEBHART, Dirk KALKHOFF
  • RING-ROLLING MACHINE AND METHOD FOR LIFTING AND LOWERING THE MANDREL ROLL OF A RING-ROLLING MACHINE
    Publication number: 20170225222
    Abstract: In a ring-rolling machine having a mandrel roll and a related radial roll, the mandrel roll can be handled in operationally reliable and structurally simple manner if an axial bearing of the mandrel roll is opened by way of an opening drive that does not rotate along with the mandrel roll and/or is closed by inserting the mandrel roll into the axial bearing.
    Type: Application
    Filed: January 31, 2017
    Publication date: August 10, 2017
    Applicant: SMS group GmbH
    Inventors: Felix RODERMUND-GEBHART, Dirk KALKHOFF