Patents by Inventor Helmut Warscheit

Helmut Warscheit 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).

  • Vaporizer crucible for vacuum vapor-deposition
    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
  • Film cassette for a photocomposing machine
    Patent number: 3978495
    Abstract: A film cassette having a take-up reel with a clamping mechanism for gripping the leading end of a film strip and which reel is motor driven to wind exposed film into the cassette; the drive motor is disconnected from the reel to permit the reel to be freely rotated and exposed film wound thereon to be unwound and removed from the cassette. An actuating lever is provided to close the clamping mechanism and connect the motor to the take-up reel and to open the clamping mechanism and disconnect the motor.
    Type: Grant
    Filed: February 12, 1975
    Date of Patent: August 31, 1976
    Assignee: Mergenthaler Linotype GmbH
    Inventor: Helmut Warscheit