Patents by Inventor Eric F. May

Eric F. May 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).

  • Microwave measurement of phase equilibria
    Patent number: 6879166
    Abstract: A microwave resonator apparatus (35) includes a microwave resonant cavity (36) in fluid communication chamber (38) are dimensioned to ensure high attenuation of resonant electromagnetic fields without impeding fluid flow. The resonant properties of the cavity (36) are therefore completely insensitive to variations in the volume of the pressure chamber (38). The resonator has a specialised reentrant geometry. Consequently, two of the cavity's resonant modes depend sensitively upon the formation and volume of any liquid phase present in the cavity. The apparatus and the method are suitable for measuring dielectric properties and phase envelope of fluid mixtures (such as a gas condensate fluid). The apparatus can be used for making several phase envelope measurements without risk of contamination.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: April 12, 2005
    Assignee: University of Western Australia
    Inventors: Eric F. May, Terry J. Edwards, Anthony G. Mann, Cyril Edwards
  • Microwave measurement of phase equilibria
    Publication number: 20030155926
    Abstract: A microwave resonator apparatus (35) includes a microwave resonant cavity (36) in fluid communication chamber (38) are dimensioned to ensure high attenuation of resonant electromagnetic fields without impeding fluid flow. The resonant properties of the cavity (36) are therefore completely insensitive to variations in the volume of the pressure chamber (38). The resonator has a specialised reentrant geometry. Consequently, two of the cavity's resonant modes depend sensitively upon the formation and volume of any liquid phase present in the cavity. The apparatus and the method are suitable for measuring dielectric properties and phase envelope of fluid mixtures (such as a gas condensate fluid). The apparatus can be used for making several phase envelope measurements without risk of contamination.
    Type: Application
    Filed: February 18, 2003
    Publication date: August 21, 2003
    Inventors: Eric F. May, Terry J. Edwards, Anthony G. Mann, Cyril Edwards