Patents by Inventor Alistaire S Holt

Alistaire S Holt 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).

  • Acoustic damper
    Patent number: 7549290
    Abstract: A combustor wall of a gas turbine engine is provided with an acoustic damper component. The component has a first metering passage, a first damping chamber, a first damping passage, a second damping chamber and a second damping passage. Air flows through the damper to be ejected into the combustion chamber from the second damping passage at a selected velocity and volumetric flow. The flow being sufficient to damp instabilities from the combustion process.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: June 23, 2009
    Assignee: Rolls-Royce plc
    Inventors: Alistaire S Holt, Michael A MacQuisten, Michael Whiteman, Anthony J Moran