Patents by Inventor Joseph Heimerl

Joseph Heimerl 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).

  • Apparatus for the production of high-purity metal powder by means of electron beam heating
    Patent number: 4295808
    Abstract: High-purity metal powder is made by the electron beam melting of a starting material in rod form in a vacuum wherein the molten metal is momentarily caught on a spinning plate rotating at high speed and flung therefrom and thereafter solidified by cooling. The metal on the spinning plate is bombarded with an electron beam that is so focused and periodically deflected that its focal spot is many times smaller than the diameter of the spinning plate. The beam deflection between the rotational center of the spinning plate and its marginal area is performed such that the spinning plate is scanned in a zone that extends radially of the axis of rotation of the spinning plate and is small in relation to its diameter. Cooling of the metal particles to the point of solidification is accomplished by radiation loss.
    Type: Grant
    Filed: October 15, 1979
    Date of Patent: October 20, 1981
    Assignee: Leybold-Heraeus GmbH & Co. KG
    Inventors: Herbert Stephan, Hans Aichert, Joseph Heimerl
  • Method for the production of high-purity metal powder by means of electron beam heating
    Patent number: 4218410
    Abstract: High-purity metal powder is made by the electron beam melting of a starting material in rod form in a vacuum wherein the molten metal is momentarily caught on a spinning plate rotating at high speed and flung therefrom and thereafter solidified by cooling. The metal on the spinning plate is bombarded with an electron beam that is so focused and periodically deflected that its focal spot is many times smaller than the diameter of the spinning plate. The beam deflection between the rotational center of the spinning plate and its marginal area is performed such that the spinning plate is scanned in a zone that extends radially of the axis of rotation of the spinning plate and is small in relation to its diameter. Cooling of the metal particles to the point of solidification is accomplished by radiation loss.
    Type: Grant
    Filed: May 3, 1978
    Date of Patent: August 19, 1980
    Assignee: Leybold-Heraeus GmbH & Co. KG
    Inventors: Herbert Stephan, Hans Aichert, Joseph Heimerl