Patents by Inventor Frederick Davidson

Frederick Davidson 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).

  • System and method for repairing a gearbox of a wind turbine uptower
    Patent number: 11965479
    Abstract: A rotor lock assembly for locking a rotor of a wind turbine. The rotor lock assembly has at least one relocatable rotor lock. The relocatable rotor lock has a housing, a bushing element, a pin shaft position within the bushing element, and a locking mechanism. The housing includes a mounting portion adapted for mounting to a bearing housing adjacent to a rotor lock plate of the rotor.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: April 23, 2024
    Assignee: GE Infrastructure Technology LLC
    Inventors: Brian William Manikas, Paul Howard Davidson, Michael Frederick Sander, Jacob Thomas Hoyt, Jason James Welsh, Kevin L Holmes
  • Method and system for inflight refueling of unmanned aerial vehicles
    Patent number: 8056860
    Abstract: A system and method for refueling unmanned aerial vehicles. The system is adapted to refuel a first unmanned aerial vehicle from a second unmanned aerial vehicle and includes an arrangement for flying the first and second vehicles to proximity within a predetermined range and for connecting an umbilical from the second vehicle to the first vehicle in flight. In the illustrative embodiment, the arrangement for connecting includes a targeting system for electromagnetically detecting a refueling receptacle on the first vehicle. The targeting system includes a first coil around a refueling receptacle on the first vehicle. A seeker is disposed at a first end of said umbilical on the second vehicle. The seeker includes three detector coils adapted to detect a magnetic signal from the first coil around the receptacle on the first vehicle. The coils are mounted such that the detector coils point in different directions.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: November 15, 2011
    Assignee: Raytheon Company
    Inventors: James Small, Frederick Davidson, Carlos Garcia
  • Method and system for inflight refueling of unmanned aerial vehicles
    Publication number: 20100321011
    Abstract: A system and method for refueling unmanned aerial vehicles. The system is adapted to refuel a first unmanned aerial vehicle from a second unmanned aerial vehicle and includes an arrangement for flying the first and second vehicles to proximity within a predetermined range and for connecting an umbilical from the second vehicle to the first vehicle in flight. In the illustrative embodiment, the arrangement for connecting includes a targeting system for electromagnetically detecting a refueling receptacle on the first vehicle. The targeting system includes a first coil around a refueling receptacle on the first vehicle. A seeker is disposed at a first end of said umbilical on the second vehicle. The seeker includes three detector coils adapted to detect a magnetic signal from the first coil around the receptacle on the first vehicle. The coils are mounted such that the detector coils point in different directions.
    Type: Application
    Filed: August 10, 2010
    Publication date: December 23, 2010
    Inventors: James Small, Frederick Davidson, Carlos Garcia
  • Method and system for inflight refueling of unmanned aerial vehicles
    Patent number: 7798449
    Abstract: A system and method for refueling unmanned aerial vehicles. The system is adapted to refuel a first unmanned aerial vehicle from a second unmanned aerial vehicle and includes an arrangement for flying the first and second vehicles to proximity within a predetermined range and for connecting an umbilical from the second vehicle to the first vehicle in flight. In the illustrative embodiment, the arrangement for connecting includes a targeting system for electromagnetically detecting a refueling receptacle on the first vehicle. The targeting system includes a first coil around a refueling receptacle on the first vehicle. A seeker is disposed at a first end of said umbilical on the second vehicle. The seeker includes three detector coils adapted to detect a magnetic signal from the first coil around the receptacle on the first vehicle. The coils are mounted such that the detector coils point in different directions.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: September 21, 2010
    Assignee: Raytheon Company
    Inventors: James Small, Frederick Davidson, Carlos Garcia
  • Method and system for inflight refueling of unmanned aerial vehicles
    Publication number: 20090045290
    Abstract: A system and method for refueling unmanned aerial vehicles. The system is adapted to refuel a first unmanned aerial vehicle from a second unmanned aerial vehicle and includes an arrangement for flying the first and second vehicles to proximity within a predetermined range and for connecting an umbilical from the second vehicle to the first vehicle in flight. In the illustrative embodiment, the arrangement for connecting includes a targeting system for electromagnetically detecting a refueling receptacle on the first vehicle. The targeting system includes a first coil around a refueling receptacle on the first vehicle. A seeker is disposed at a first end of said umbilical on the second vehicle. The seeker includes three detector coils adapted to detect a magnetic signal from the first coil around the receptacle on the first vehicle. The coils are mounted such that the detector coils point in different directions.
    Type: Application
    Filed: August 13, 2007
    Publication date: February 19, 2009
    Inventors: James Small, Frederick Davidson, Carlos Garcia