Patents by Inventor David William Wallace

David William Wallace 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).

  • Patent number: 11970946
    Abstract: A clearance control assembly for a gas turbine engine that defines an axial direction and a radial direction and includes a stage of rotor blades and a shroud hanger. The assembly includes a case configured to be positioned outward along the radial direction from the stage of rotor blades when installed in the gas turbine engine. The case is further configured to be engaged with the shroud hanger at a first location when installed in the gas turbine engine. The assembly also includes a baffle positioned outward along the radial direction from the case to define a chamber therebetween. The baffle has a forward end and an aft end. The forward end of the baffle is engaged with the case to form a first seal and the aft end of the baffle is engaged with the case to form a second seal. The baffle, the case, or both define an inlet to allow a fluid to enter the chamber and the case defines an outlet to allow the fluid to exit the chamber.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: April 30, 2024
    Assignee: General Electric Company
    Inventors: Travis J. Packer, James Hamilton Grooms, David Fasig, Richard William Jendrix, Scott Alan Schimmels, Bradford Alan Tracey, Michael Alan Hile, Thomas Ryan Wallace
  • Publication number: 20100018902
    Abstract: Method of producing a total product are described. A method includes providing a feed and a supported inorganic salt catalyst to a contacting zone. Contact of the supported inorganic salt catalyst with the feed in the presence of a hydrogen source and steam in the contacting zone at a temperature of at most 1000° C. and a total operating pressure of at most 4 MPa produces the total product.
    Type: Application
    Filed: September 30, 2009
    Publication date: January 28, 2010
    Inventors: Thomas Fairchild Brownscombe, Scott Lee Wellington, Eswarachandra Kumar Paruchuri, Weijian Mo, William Douglas Gillespie, Chen Elizabeth Ramachandran, Susan Secor Pfrehm, David William Wallace