Patents by Inventor Ed Fong

Ed Fong 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).

  • Phase shift devices for pulse tube coolers
    Patent number: 8397520
    Abstract: Various embodiments are directed to pulse tube coolers and components thereof. A pulse tube cooler may comprise a compressor, a regenerator, a pulse tube and a reservoir. A network of phase control devices may be placed in a fluid path between a hot end of the pulse tube and the reservoir. The network of phase control devices may have at least one flow resistance device and at least one inertance device.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: March 19, 2013
    Assignee: The Aerospace Corporation
    Inventors: Sidney W. K. Yuan, Ed Fong, David G. T. Curran
  • PHASE SHIFT DEVICES FOR PULSE TUBE COOLERS
    Publication number: 20110100022
    Abstract: Various embodiments are directed to pulse tube coolers and components thereof. A pulse tube cooler may comprise a compressor, a regenerator, a pulse tube and a reservoir. A network of phase control devices may be placed in a fluid path between a hot end of the pulse tube and the reservoir. The network of phase control devices may have at least one flow resistance device and at least one inertance device.
    Type: Application
    Filed: November 3, 2009
    Publication date: May 5, 2011
    Applicant: The Aerospace Corporation
    Inventors: Sidney W. K. Yuan, Ed Fong, David G. T. Curran