Patents by Inventor Cletis M. Jackson

Cletis M. Jackson 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).

  • Electro-discharge machining electrode
    Patent number: 4922076
    Abstract: An improved electrode for producing cone-shaped diffusion openings in the wall of an air-cooled rotor blade of a jet engine or other gas turbine by means of electro-discharge-machining (EDM), is described. The electrode has a needle-like forward end section for forming a round air metering hole, and a cone-like head section which permits the formation of a cone-shaped diffusion opening. The hole and the diffusion opening are formed with a single electrode in one operation. Also described is the method of forming such an electrode by a coining step.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: May 1, 1990
    Assignee: Technical Manufacturing Systems, Inc.
    Inventors: Jack A. Cross, Cletis M. Jackson
  • Method of forming electro-discharge machining electrode
    Patent number: 4819325
    Abstract: An improved electrode for producing cone-shaped diffusion openings in the wall of an air-cooled rotor blade of a jet engine or other gas turbine by means of electro-discharge-machining (EDM), is described. The electrode has a needle-like forward end section for forming a round air metering hole, and a cone-like head section which permits the formation of a cone-shaped diffusion opening. The hole and the diffusion opening are formed with a single electrode in one operation. Also described is the method of forming such an electrode by a coining step.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: April 11, 1989
    Assignee: Technical Manufacturing Systems, Inc.
    Inventors: Jack A. Cross, Cletis M. Jackson