Patents by Inventor Klaus Krippeit

Klaus Krippeit 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).

  • Device and method for thermally pre-stressing elongated hollow objects
    Patent number: 7805962
    Abstract: A device and a method for thermal pre-stressing lengthy hollow objects, in particular glass tubes, are disclosed. The device comprises a heating device, a fixture for receiving an object, and a coolant feed device comprising an outer coolant feed unit with a plurality of nozzles for feeding coolant against an outer surface of the object, and further comprising an inner coolant feed device for feeding coolant against an inner surface of the object.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: October 5, 2010
    Assignee: Schott AG
    Inventors: Michael Spaeth, Klaus Krippeit, Hendrik Alfter, Juergen Thuerk
  • Device and method for thermally pre-stressing elongated hollow objects
    Publication number: 20060016220
    Abstract: A device and a method for thermal pre-stressing lengthy hollow objects, in particular glass tubes, are disclosed. The device comprises a heating device, a fixture for receiving an object, and a coolant feed device comprising an outer coolant feed unit with a plurality of nozzles for feeding coolant against an outer surface of the object, and further comprising an inner coolant feed device for feeding coolant against an inner surface of the object.
    Type: Application
    Filed: July 21, 2005
    Publication date: January 26, 2006
    Inventors: Michael Spaeth, Klaus Krippeit, Hendrik Alfter, Juergen Thuerk