Patents by Inventor Greg Swift

Greg Swift 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).

  • Thermoacoustic refrigerators and engines comprising cascading stirling thermodynamic units
    Patent number: 8468838
    Abstract: The present invention includes a thermoacoustic assembly and method for improved efficiency. The assembly has a first stage Stirling thermal unit comprising a main ambient heat exchanger, a regenerator and at least one additional heat exchanger. The first stage Stirling thermal unit is serially coupled to a first end of a quarter wavelength long coupling tube. A second stage Stirling thermal unit comprising a main ambient heat exchanger, a regenerator, and at least one additional heat exchanger, is serially coupled to a second end of the quarter wavelength long coupling tube.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: June 25, 2013
    Assignee: Los Alamos National Security, LLC
    Inventors: Scott Backhaus, Greg Swift
  • Thermoacoustic Refrigerators and Engines Comprising Cascading Stirling Thermodynamic Units
    Publication number: 20090249797
    Abstract: The present invention includes a thermoacoustic assembly and method for improved efficiency. The assembly has a first stage Stirling thermal unit comprising a main ambient heat exchanger, a regenerator and at least one additional heat exchanger. The first stage Stirling thermal unit is serially coupled to a first end of a quarter wavelength long coupling tube. A second stage Stirling thermal unit comprising a main ambient heat exchanger, a regenerator, and at least one additional heat exchanger, is serially coupled to a second end of the quarter wavelength long coupling tube.
    Type: Application
    Filed: March 31, 2009
    Publication date: October 8, 2009
    Applicant: Los Alamos National Security, LLC
    Inventors: Scott Backhaus, Greg Swift