Patents by Inventor Elizabeth Marie Hood

Elizabeth Marie Hood 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).

  • Wind turbine pitch bearing with friction enhancing insert layer
    Patent number: 11619211
    Abstract: A pitch bearing for coupling a rotor blade to a hub of a wind turbine includes an outer race mountable to the hub and an inner race rotatable relative to the outer race and mountable to the rotor blade. The inner race is formed by first and second ring components, each of the first and second ring components having an outer annular face and an inner annular face. The first and second ring components are joined together at the inner annular faces such that the inner annular faces are opposed and opposite each other. A layer of friction enhancing material is inserted/disposed between the opposed inner annular faces, the friction enhancing material including an abrasive particulate component that increases a coefficient of friction to minimize slippage between the first and second ring components.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: April 4, 2023
    Assignee: General Electric Renovables Espana, S.L.
    Inventors: Gerard Iain Madden, Charles Gardner Bouchard, Jr., Elizabeth Marie Hood
  • WIND TURBINE PITCH BEARING WITH FRICTION ENHANCING INSERT LAYER
    Publication number: 20220136487
    Abstract: A pitch bearing for coupling a rotor blade to a hub of a wind turbine includes an outer race mountable to the hub and an inner race rotatable relative to the outer race and mountable to the rotor blade. The inner race is formed by first and second ring components, each of the first and second ring components having an outer annular face and an inner annular face. The first and second ring components are joined together at the inner annular faces such that the inner annular faces are opposed and opposite each other. A layer of friction enhancing material is inserted/disposed between the opposed inner annular faces, the friction enhancing material including an abrasive particulate component that increases a coefficient of friction to minimize slippage between the first and second ring components.
    Type: Application
    Filed: October 30, 2020
    Publication date: May 5, 2022
    Inventors: Gerard Iain Madden, Charles Gardner Bouchard, JR., Elizabeth Marie Hood