Patents by Inventor Albert Feuerstein

Albert Feuerstein 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: 4724796
    Abstract: A vaporization arrangement for coating substrates disposed in an areal region, or past through an areal region, comprises a rectangular vaporization crucible with a crucible rim, as well as plurality of electron guns each having an X-Y deflecting system. The electron guns are disposed on one side of the drucible axis separately from the crucible in such a manner that their beam axis extend parallel to one another and are directed on a plane passing vertically through the longitudinal axis of the crucible. The arrangement further comprises means for deflecting the electron means onto the surface of the contents of the crucible. Such means include an alternating serial arrangement of linear coils, on the side of the crucible opposite to the electron guns, and pole plates disposed both between the linear coils and at their ends.
    Type: Grant
    Filed: December 15, 1986
    Date of Patent: February 16, 1988
    Assignee: Leybold-Heraeus GmbH
    Inventors: Horst Ranke, Volker Bauer, Albert Feuerstein, Walter Dietrich
  • Patent number: 4648347
    Abstract: In vacuum depositing apparatus, especially for the manufacture of magnetic tapes, a substrate holder is disposed in the form of a cooling cylinder, and in the path of the vapor stream there is a mask for the purpose of geometrically restricting the vapor stream. In order to prevent any condensation of vaporized material in solid form, the surface of the mask facing the vapor stream is not aligned horizontally, and its lowermost edge lies within the projected surface of the crucible opening. The surface of the mask can be heated up to a temperature that is between the vaporizing temperature and the solidification temperature of the vaporized material. In an especially advantageous manner, the surface of the mask is formed by tiles of a ceramic material.
    Type: Grant
    Filed: May 29, 1985
    Date of Patent: March 10, 1987
    Assignee: Leybold-Heraeus GmbH
    Inventors: Hans Aichert, Volker Bauer, Albert Feuerstein, Horst Ranke
  • Patent number: 4627989
    Abstract: A method and system for a vacuum-evaporative film-deposition process displays bar charts of the local evaporation power of each vapor source in the process and the film thickness deposited thereby in spatial coordination on a single display screen.
    Type: Grant
    Filed: August 8, 1984
    Date of Patent: December 9, 1986
    Assignee: Leybold Heraeus GmbH
    Inventors: Albert Feuerstein, Gernot Thorn, Horst Ranke
  • Patent number: 4613306
    Abstract: Evaporator crucible for vacuum depositing systems, having a crucible bottom with at least one bottom opening for the introduction of material in rod form for evaporation. At a distance from the bottom opening there is provided at least one metal crucible rim which preferably is provided with a coolant passage. To solve the problem of reducing the heat losses, the crucible rim is provided internally on at least a part of its depth with a lagging comprising ceramic material. This lagging preferably comprises individual ceramic building blocks which are preferably compressed from magnesium oxide.
    Type: Grant
    Filed: May 2, 1985
    Date of Patent: September 23, 1986
    Assignee: Leybold-Heraeus GmbH
    Inventors: Volker Bauer, Albert Feuerstein, Horst Ranke
  • Patent number: 4530100
    Abstract: A vaporizer crucible for vacuum vapor-deposition apparatus, comprises a metallic body 1 having a recess 2 for accommodating vaporizing material and connected in a thermally-conductive manner to a cooling duct 7 which surrounds the recess 2 at least partially. For effectively preventing reduction in heat transfer in the event of the formation of vapor bubbles in the cooling medium at least one guide device 22 for imparting a swirling motion to the cooling medium flowing in the cooling duct 7 is provided in said duct. The guide device 22 preferably takes the form of a spiral element matching the path of the cooling duct.
    Type: Grant
    Filed: July 7, 1983
    Date of Patent: July 16, 1985
    Assignee: Leybold-Heraeus GmbH
    Inventors: Albert Feuerstein, Klaus-Jurgen Heimbach, Helmut Warscheit