Patents by Inventor Edward M. Breinan

Edward M. Breinan 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).

  • Patent number: 4323756
    Abstract: A method is described for the production of bulk rapidly solidified metallic articles of near-net shape, by depositing multiple thin layers of feedstock using an energy beam to fuse each layer onto a substrate. The feedstock may be in the form of metal powder or wire. Different finished geometries are also described.
    Type: Grant
    Filed: October 29, 1979
    Date of Patent: April 6, 1982
    Assignee: United Technologies Corporation
    Inventors: Clyde O. Brown, Edward M. Breinan, Bernard H. Kear
  • Patent number: 4000392
    Abstract: A method of accomplishing a controlled weld with a beam of laser radiation is disclosed. The workpiece is cleaned and fitted prior to joining and a flow of a gas is provided in the weld region to prevent the formation of radiation insulating plasma between the laser source and the workpiece and to aspirate gaseous impurities from the weld zone. In addition, a trailing cover gas is provided to both the top and the bottom of the weld until the joint is sufficiently cooled to prevent reaction between the metal and the atmosphere. The beam must contain more than two kilowatts of power and be focusable on the workpiece to a power density of at least one megawatt per square inch in order to produce a keyhole in the fusion zone. Further, a weld speed in excess of twenty inches per minute and a progressive solidification technique of the weld contribute to the expulsion of contaminants from the weld.
    Type: Grant
    Filed: December 9, 1975
    Date of Patent: December 28, 1976
    Assignee: United Technologies Corporation
    Inventors: Conrad M. Banas, Edward M. Breinan