Patents by Inventor Burt Xudong Zhang

Burt Xudong Zhang 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).

  • Vacuum coupling of rotating superconducting rotor
    Patent number: 6657333
    Abstract: A rotating coupling allows a vacuum chamber in the rotor of a superconducting electric motor to be continually pumped out. The coupling consists of at least two concentric portions, one of which is allowed to rotate and the other of which is stationary. The coupling is located on the non-drive end of the rotor and is connected to a coolant supply and a vacuum pump. The coupling is smaller in diameter than the shaft of the rotor so that the shaft can be increased in diameter without having to increase the size of the vacuum seal.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: December 2, 2003
    Assignee: Reliance Electric Technologies, LLC
    Inventors: Boris A. Shoykhet, Burt Xudong Zhang, David Infante Driscoll
  • Vacuum coupling of rotating superconducting rotor
    Publication number: 20030052555
    Abstract: A rotating coupling allows a vacuum chamber in the rotor of a superconducting electric motor to be continually pumped out. The coupling consists of at least two concentric portions, one of which is allowed to rotate and the other of which is stationary. The coupling is located on the non-drive end of the rotor and is connected to a coolant supply and a vacuum pump. The coupling is smaller in diameter than the shaft of the rotor so that the shaft can be increased in diameter without having to increase the size of the vacuum seal.
    Type: Application
    Filed: September 17, 2001
    Publication date: March 20, 2003
    Inventors: Boris A. Shoykhet, Burt Xudong Zhang, David Infante Driscoll