Patents by Inventor Paul G. Campbell

Paul G. Campbell 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).

  • High power electroacoustic speaker system having wide band frequency response
    Patent number: 5875255
    Abstract: A bass reflex-type loudspeaker having enhanced low frequency response and enhanced power handling capacity comprises a low frequency loudspeaker mounted in a ported enclosure whose walls are made purposefully resonant, the front baffle and rear surface of the enclosure connected by a sound post which serves to acoustically couple the front and rear enclosure surfaces.
    Type: Grant
    Filed: August 28, 1997
    Date of Patent: February 23, 1999
    Inventor: Paul G. Campbell
  • Self-contained renewable energy system
    Patent number: 4883823
    Abstract: An integrated power system is located adjacent a body of saline water. The power system includes a solar powered and a wind driven engine. Desalinization and electrolysis of the water is provided. The system produces carbon dioxide and hydrogen which are used to generate methanol. The methanol can be used as a fuel to drive a combustion engine.
    Type: Grant
    Filed: April 21, 1988
    Date of Patent: November 28, 1989
    Assignee: Perry Oceanographics, Inc.
    Inventors: John H. Perry, Jr., Bharat K. Bhatt, Jesse Capps, Paul M. Eldridge, Leonard Greiner, Robert W. Lockyer, Michelle Martin, Raymond R. McNeice, Steven M. Misiaszek, Stanton S. Perry, Thomas F. Sullivan, Paul G. Campbell
  • Self-contained renewable energy system
    Patent number: 4776171
    Abstract: An integrated power system is located adjacent a body of saline water. The power system includes a solar powered and a wind driven engine. Desalinization and electrolysis of the water is provided. The system produces carbon dioxide and hydrogen which are used to generate methanol. The methanol can be used as a fuel to drive a combustion engine.
    Type: Grant
    Filed: November 14, 1986
    Date of Patent: October 11, 1988
    Assignee: Perry Oceanographics, Inc.
    Inventors: John H. Perry, Jr., Bharat K. Bhatt, Jesse Capps, Paul M. Eldridge, Leonard Greiner, Robert W. Lockyer, Michelle Martin, Raymond R. McNeice, Steven M. Misiaszek, Stanton S. Perry, Thomas F. Sullivan, Paul G. Campbell