Patents by Inventor W. Krotzer

W. Krotzer 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).

  • Investment casting
    Publication number: 20050045301
    Abstract: A method and apparatus are used to cast a number of elements such as turbine engine blades. The blades have an airfoil and a root for securing the blade to a disk. A number of mold sections each have internal surfaces for forming an associated at least one of the elements. The mold sections are assembled and molten alloy is introduced to the assembled mold sections.
    Type: Application
    Filed: August 28, 2003
    Publication date: March 3, 2005
    Inventors: Steven Bullied, Maria Herring, W. Krotzer, Stephen Murray