Patents by Inventor Abdou H. Meleka

Abdou H. Meleka 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).

  • Methods and apparatus for electrically machining a work piece
    Patent number: 4159407
    Abstract: The production of passages in workpieces is described by an electrical method which simultaneously utilizes electrochemical and electrical discharge machining with a single electrode and dilute electrolytes. The method overcomes the metallurgical defects inherent in the recast layer left by electrical discharge machining which is removed by electrochemical machining. The method is particularly suited to producing cooling passages in the turbine blades of gas turbine engines and can be used to produce venturi shaped holes with rounded edges.
    Type: Grant
    Filed: June 13, 1977
    Date of Patent: June 26, 1979
    Assignee: Rolls-Royce (1971) Limited
    Inventors: Bernard H. Wilkinson, Abdou H. Meleka, Derek A. Glew