Patents by Inventor Karl-Heinz Wyrwas

Karl-Heinz Wyrwas 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).

  • Ingot mould for continuous casting
    Patent number: 4883111
    Abstract: The mould includes wide side plates 4, 5 and adjustable narrow side plates 2, 3 which can be clamped by the wide side plates 4, 5. Adjusting cylinders 11 operable by a hydraulic pressure medium are used to adjust and tension the wide side plate 5. To prevent the tensioning from becoming accidentally loosened if the pressure medium fails, the wide side plate 5 is additionally supported, more particularly on clamping elements 12 which can be clamped to the piston rods 13 of the adjusting cylinders 11. A control device 21 activates the clamping elements 12 when a limit pressure is reached at the adjusting cylinders 11.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: November 28, 1989
    Assignee: Thyssen Stahl Aktiengesellschaft
    Inventors: Hermann Lax, Waldemar Radtke, Karl-Heinz Wyrwas