Patents by Inventor David M Lambert

David M Lambert 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: 7802963
    Abstract: A pivot ring arrangement for a stage of variable stator vanes (VSVs) (38) in a gas turbine engine comprises a plurality of segments (12) secured in a segment carrier (22). The segments are injection molded from self-lubricating material, obviating the need for separate bushes for the VSV spindles (36).
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: September 28, 2010
    Assignee: Rolls-Royce plc
    Inventors: Clive R Holland, David M Lambert
  • Patent number: 5890874
    Abstract: A rotor for a ducted fan gas turbine engine includes a rotor disc on which a number of circumferentially spaced apart blades are mounted. Wall members are positioned to bridge the space between adjacent blades. The wall members correspond in profile with the blades adjacent thereto. A seal is mounted on a side face of each wall member and is bonded to a flexible mounting which is bonded itself to the wall member. The flexible mounting has elastic properties so as to allow the seal to deflect relative to the wall member under centrifugal loading during operation.
    Type: Grant
    Filed: January 7, 1997
    Date of Patent: April 6, 1999
    Assignee: Rolls-Royce plc
    Inventors: David M Lambert, David S Knott, Peter R Beckford