Patents by Inventor Zdenek Prochazka

Zdenek Prochazka 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).

  • ALUMINUM WELDING OF AIRCRAFT ENGINE COMPONENTS
    Publication number: 20100044347
    Abstract: A porosity free weld is formed at the surface of an aluminum object. The object is enclosed in a welding box that is sealed and purged with an inert gas, and preheated to at least 100° C. Welding of one pass of the weld using a gas-tungsten arc welding method with AC current and shielding gas mixture of argon and helium is followed by removal of the top portion of the bead. The process of preheating, formation of a weld bead and top portion removal are repeated to achieve the desired weld thickness or build-up.
    Type: Application
    Filed: September 22, 2008
    Publication date: February 25, 2010
    Applicant: EAGLE SERVICES ASIA PRIVATE LIMITED
    Inventor: Zdenek Prochazka