Patents Examined by Enoch E. Peaver
  • Abradable seal having improved properties
    Patent number: 6352264
    Abstract: An air seal for use in a gas turbine engine is disclosed. The seal includes a seal substrate, and an abradable layer on the substrate, with the abradable including a thermoset polymer and a thermoplastic polymer. The abradable may also include a filler to add porosity, or provide lubrication, to enhance abradability.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: March 5, 2002
    Assignee: United Technologies Corporation
    Inventors: William John Dalzell, Jr., Stuart Alan Sanders, George Lee Crawford, Frederick Clell Walden, William J. Woodard