Patents by Inventor Gerd Krafft

Gerd Krafft 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).

  • Method of determining the quality of adhesion in a laminar structure
    Publication number: 20010005392
    Abstract: In a method of determining the quality of a bond between layers of a laminated body wherein a laser pulse is applied to one side of the body such that the heat travels from the one side through the bond to the other side, the time-dependent temperature change on the other side is recorded, the delay time to reach, at the other side, a predetermined percentage value of the maximum temperature is determined and this delay time is compared with a calibration curve for quantifying the quality of the bond between the layers.
    Type: Application
    Filed: February 22, 2001
    Publication date: June 28, 2001
    Inventors: Brigitte Schutz, Gerd Krafft, Lazlo Duszla
  • Protective coating for turbine blades
    Patent number: 6149389
    Abstract: On a turbine blade a protective corrosion resistant surface layer consisting of a MCrAlY alloy is generated by melting the surface of the turbine blade with the MCrAlY alloy uniformly distributed over the surface of the turbine blade by a pulsed electron beam to a depth of 5-50 .mu.m whereby a smooth surface is generated.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: November 21, 2000
    Assignee: Forschungszentrum Karlsruhe GmbH
    Inventors: Hans-Henning Hennies, Gunther Kessler, Gerd Krafft, Georg Muller, Gustav Schumacher