Patents by Inventor Joseph A. Klug

Joseph A. Klug 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).

  • Reinforced ceramic shell mold and related processes
    Patent number: 6352101
    Abstract: A ceramic casting shell mold having a pre-selected shape is described. The shell mold comprises repeating layers of a ceramic material which define its wall thickness and shape. At least one of the layers of ceramic material contains refractory whiskers which provide structural reinforcement to the shell mold. The whiskers are usually incorporated into a layer of the ceramic material which is disposed at a position off-center of the wall-thickness of the mold. A method for making a ceramic casting shell mold is also described, as are metal- or metal alloy components cast in these shell molds.
    Type: Grant
    Filed: July 14, 1999
    Date of Patent: March 5, 2002
    Assignee: General Electric Company
    Inventors: Asish Ghosh, Frederic Joseph Klug, Philip Harold Monaghan, Paul Steven Svec, Robert Arthur Giddings
  • Core compositions and articles with improved performance for use in castings for gas turbine applications
    Patent number: 6345663
    Abstract: A method for fabricating a fired ceramic article, a green product, and a fired ceramic article, all for use as a core in the investment casting of directionally solidified eutectic and superalloy material. A ceramic slurry is prepared of alumina, aluminum and a solution of a polymerizable binder in a liquid. The slurry is extruded under low pressure into a closed cavity to form a gelled green product which is subsequently heated in an oxygen-containing atmosphere, wherein the oxygen reacts with the aluminum in the green product to form alumina which advantageously causes an increase in volume of the green product which counters the shrinkage effects of heating.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: February 12, 2002
    Assignee: General Electric Company
    Inventors: Frederic Joseph Klug, Robert Arthur Giddings
  • Core compositions and articles with improved performance for use in castings for gas turbine applications
    Patent number: 6152211
    Abstract: A method for fabricating a fired ceramic article, a green product, and a fired ceramic article, all for use as a core in the investment casting of directionally solidified eutectic and superalloy material. A ceramic slurry is prepared of alumina, aluminum and a solution of a polymerizable binder in a liquid. The slurry is extruded under low pressure into a closed cavity to form a gelled green product which is subsequently heated in an oxygen-containing atmosphere, wherein the oxygen reacts with the aluminum in the green product to form alumina which advantageously causes an increase in volume of the green product which counters the shrinkage effects of heating.
    Type: Grant
    Filed: December 31, 1998
    Date of Patent: November 28, 2000
    Assignee: General Electric Company
    Inventors: Frederic Joseph Klug, Robert Arthur Giddings
  • Silicone composition with improved high temperature tolerance
    Patent number: 6051642
    Abstract: A high temperature insulating composite composition comprising at least one ground silicate mineral and at least one silicone polymer. The at least one ground silicate mineral is at least one mineral selected from the group of olivine group; garnet group; aluminosilicates; ring silicates; chain silicates; and sheet silicates. The high temperature insulating material has particular usefulness for insulating electrical wires.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: April 18, 2000
    Assignee: General Electric Company
    Inventors: John Eric Tkaczyk, Frederic Joseph Klug, Jayantha Amarasekera, Chris Allen Sumpter