Patents by Inventor John H. Nortrup

John H. Nortrup 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 forming aluminum alloy airfoils
    Patent number: 10704127
    Abstract: A method of forming an airfoil includes placing a material onto a die that is heated to a predetermined temperature to pre-heat the material to a first temperature, while the die is in an open position. The method further includes closing the die at a predetermined rate and holding the die in a closed position for a predetermined period of time at a first force. The method still further includes removing the part from the die, cooling the die, placing the part onto the die, and closing the die at a second force.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: July 7, 2020
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: John Richard Palitsch, James O. Hansen, Nicolas Figueiredo, Daniel Gynther, Stephen E. Graushinsky, John H. Nortrup
  • METHOD OF FORMING ALUMINUM ALLOY AIRFOILS
    Publication number: 20170268087
    Abstract: A method of forming an airfoil includes placing a material onto a die that is heated to a predetermined temperature to pre-heat the material to a first temperature, while the die is in an open position. The method further includes closing the die at a predetermined rate and holding the die in a closed position for a predetermined period of time at a first force. The method still further includes removing the part from the die, cooling the die, placing the part onto the die, and closing the die at a second force.
    Type: Application
    Filed: March 21, 2016
    Publication date: September 21, 2017
    Inventors: John Richard Palitsch, James O. Hansen, Nicolas Figueiredo, Daniel Gynther, Stephen E. Graushinsky, John H. Nortrup