Patents by Inventor Andreas Czeratzki

Andreas Czeratzki 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).

  • Rotor blade fastening arrangement
    Patent number: 5236308
    Abstract: In a rotor blade fastening arrangement in the drum rotor of an axial flow turbomachine, the blades are fastened by means of their roots in rows in peripheral blade grooves with support indentations at the side. The blade groove provided for the first blade row is an L groove with two vertical support surfaces and one horizontal support indentation. The blade root engaging in it consists of a vertical protrusion and only one horizontal protrusion to the side.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: August 17, 1993
    Assignee: Asea Brown Boveri Ltd.
    Inventor: Andreas Czeratzki