Patents by Inventor Richard Raspet

Richard Raspet 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 refrigeration device and method
    Patent number: 6688112
    Abstract: A thermoacoustic refrigeration device employs a gas-vapor mixture as the working fluid. As a result, the refrigeration device operates according to a modified thermoacoustic refrigeration cycle that adds a condensation-vaporization cycle to the thermoacoustic cycle. The resulting modified refrigeration cycle increases the efficiency of heat transport by harnessing the translational motion of the vapor, as well as the usual acoustic oscillations, to transport the heat energy from one end of a thermal stack to the other.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: February 10, 2004
    Assignee: University of Mississippi
    Inventors: Richard Raspet, William V. Slaton, Craig J. Hickey, Robert A. Hiller, Henry E. Bass
  • Thermoacoustic refrigeration device and method
    Publication number: 20030101734
    Abstract: A thermoacoustic refrigeration device employs a gas-vapor mixture as the working fluid. As a result, the refrigeration device operates according to a modified thermoacoustic refrigeration cycle that adds a condensation-vaporization cycle to the thermoacoustic cycle. The resulting modified refrigeration cycle increases the efficiency of heat transport by harnessing the translational motion of the vapor, as well as the usual acoustic oscillations, to transport the heat energy from one end of a thermal stack to the other.
    Type: Application
    Filed: October 23, 2002
    Publication date: June 5, 2003
    Applicant: UNIVERSITY OF MISSISSIPPI
    Inventors: Richard Raspet, William V. Slaton, Craig J. Hickey, Robert A. Hiller, Henry E. Bass
  • Windscreen and two microphone configuration for blast noise detection
    Patent number: 4712429
    Abstract: A system for detecting and monitoring blast noise, the invention provides ncentrically arranged cylindrical windscreens having a pair of vertically spaced microphones mounted centrally therein, the windscreens acting to reduce interference from wind-generated pseudosound yet being acoustically transparent so as not to interfere with the reception of acoustical data incident on the microphones. The present system also includes a signal processing subsystem which receives the output of the respective microphones for analysis.
    Type: Grant
    Filed: December 15, 1987
    Date of Patent: December 15, 1987
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Richard Raspet, Mark D. Wagner