Patents by Inventor Felix R. Pawlowski

Felix R. Pawlowski 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).

  • Case-Hardened plate armor and method of making
    Patent number: 4857119
    Abstract: Case-hardened plate armor disclosed includes a steel plate (14,18) that is heat treated to provide carbonitride surfaces and a tough, ductile core, with the carbonitride surfaces having a toughness of at least 66, and preferably at least 67, on the Rockwell C scale to prevent surface penetration, and with the tough, ductile core being softer than the carbonitride surfaces to prevent brittle fracture. The steel plate (14,18) may be made from either rolled homogenous armor which has a final core hardness in the range of 45 to 50 on the Rockwell C scale, or from high-hard armor which has a final core hardness in the range of 52 to 54 on the Rockwell C scale. The steel plate may be made with holes or may be imperforate depending upon weight requirements.
    Type: Grant
    Filed: March 1, 1988
    Date of Patent: August 15, 1989
    Assignee: General Dynamics Lands Systems, Inc.
    Inventors: David A. Karst, Felix R. Pawlowski, William A. Potrafke, Harold E. Schuneman