Patents by Inventor Hoyt Y. Chang, JR.

Hoyt Y. Chang, JR. 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).

  • Shielding pockets for case holes
    Patent number: 10690006
    Abstract: A case is provided for a gas turbine engine. The case includes a wall defining a through-hole. The case also includes first and second pockets adjacent to, and on opposite sides, of the through hole. A method of reducing stress in a case of a gas turbine engine is also provided that includes reducing stress about a through-hole by providing a concavity on each side of the through-hole.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: June 23, 2020
    Assignee: Raytheon Technologies Corporation
    Inventors: Hoyt Y. Chang, Jr., Yusuke Ichihashi, Yohei Fujimoto, Timothy Dale
  • SHIELDING POCKETS FOR CASE HOLES
    Publication number: 20160201511
    Abstract: A case is provided for a gas turbine engine. The case includes a wall defining a through-hole. The case also includes first and second pockets adjacent to, and on opposite sides, of the through hole. A method of reducing stress in a case of a gas turbine engine is also provided that includes reducing stress about a through-hole by providing a concavity on each side of the through-hole.
    Type: Application
    Filed: September 12, 2014
    Publication date: July 14, 2016
    Inventors: Hoyt Y. Chang, JR., Yusuke Ichihashi, Yohei Fujimoto, Timothy Dale