Patents by Inventor Herbert C. Freyhardt

Herbert C. Freyhardt 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: 6638568
    Abstract: A method of curing cracks in a ceramic shaped body made from ceramic magnet materials or ceramic superconductor materials, in which a filling material which melts at a lower temperature than the material of the shaped body or is flowable at a lower temperature than the material of the shaped body is applied to the surface of the shaped body at least in the area of a crack and/or is introduced into at least one crack, in which the shaped body with the filling material is heated to and maintained at a temperature at which the material of the shaped body does not yet melt or is not yet flowable, but at which the filling material is in at least partially molten and flowable state at least until the fused filling material can penetrate at least partially into the crack, in which the filling material consists of non-metallic or essentially of non-metallic compounds and is at least partially crystallized, and in which the shaped body with the filling material is cooled, wherein the thermal crystallization conditions
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: October 28, 2003
    Assignee: Nexans Superconductors GmbH
    Inventors: Michael Baecker, Joachim Bock, Herbert C. Freyhardt, Andreas Leenders, Heribert Walter, Martin Ullrich
  • Patent number: 5846911
    Abstract: A method of producing a superconductive coating (19) on an elongated substrate (12) is indicated, whereby the substrate (12) is drawn through a deposition chamber (1) in which it is also heated in a heating zone (2) and is coated with a superconducting material. To improve the current carrying capacity, the substrate (12) is coated with the superconducting material in a geometric form which differs from the use of the finished product in a way so that a compressive strain is created in the substrate plane of the superconductive coating (19) for the geometric form of the substrate (12) taking place when it is put to use.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: December 8, 1998
    Assignee: Alcatel Alsthom Compagnie Generale d'Electricite
    Inventors: Herbert C. Freyhardt, Alexander Usoskin, Francisco Garcia-Moreno
  • Patent number: 4336065
    Abstract: A method for manufacturing a composite material by powder metallurgy wherein a starting material comprised of at least one body-centered cubic metal powder component, and contaminated by oxygen in its bulk or on its surface is mixed with a less noble supplemental component having a greater binding enthalpy for oxygen in powder form or as an alloy whereby the oxygen contaminant becomes bound to the supplemental component by internal solid-state reduction. The composite mixture is then deformed in at least one dimension to form ribbons or fibers thereof.
    Type: Grant
    Filed: February 26, 1980
    Date of Patent: June 22, 1982
    Inventors: Hans Bergmann, Rudiger Bormann, Herbert C. Freyhardt, Barry L. Mordike