Patents by Inventor Edward H. Thomas

Edward H. Thomas 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).

  • Sonic debubbler for liquids
    Patent number: 5022899
    Abstract: A fluid debubbler 10 for removing bubbles from fluids such as blood. The debubbler utilizes an ultrasonic transducer 22 to produce low power anisotropic sound waves at about the resonant frequencies of the bubbles to be removed. The sound waves impart a force on bubbles in a fluid chamber 20 so that they will be driven towards a rejected fluid drain 18. Debubbled fluid is removed from the debubbler through an outlet port 16.
    Type: Grant
    Filed: May 16, 1986
    Date of Patent: June 11, 1991
    Assignee: Robert G. Hohlfeld
    Inventors: Robert G. Hohlfeld, Edward H. Thomas