Patents by Inventor David Rootes

David Rootes 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).

  • Bladed rotor with a tiered blade to hub interface
    Patent number: 6739837
    Abstract: A bladed rotor features a tiered interface between each blade 40 and its respective slot 16 in a rotor hub 12. Ideally the interface is a tiered spacer 58 that occupies the hub slot radially inboard of the blade attachment 44. The spacer ensures a tight fit to resist windmilling induced wear. The tiered character of the spacer reduces the risk of damage during blade installation and removal. The spacer also helps to transmit axial loads to a snap ring, which is one component of a blade axial retention system, during a blade separation event.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: May 25, 2004
    Assignee: United Technologies Corporation
    Inventors: Amanda E. Barnette, David Rootes
  • Bladed rotor with a tiered blade to hub interface
    Publication number: 20030194321
    Abstract: A bladed rotor features a tiered interface between each blade 40 and their respective slots 16 in a rotor hub 12. Ideally the interface is a tiered spacer 58 that occupies the hub slot radially inboard of the blade attachment 44. The spacer ensures a tight fit to resist windmilling induced wear. The tiered character of the spacer reduces the risk of damage during blade installation and removal. The spacer also helps to transmit axial loads to a snap ring, which is one component of a blade axial retention system, during a blade separation event.
    Type: Application
    Filed: April 16, 2002
    Publication date: October 16, 2003
    Inventors: Amanda E. Barnette, David Rootes