Patents by Inventor Paul M. Keyser

Paul M. Keyser 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).

  • Sparger system including jet stream aerator
    Patent number: 5676823
    Abstract: A sparging system assembly having an improved nozzle for use in a flotation separation column. The sparging system of the present invention uses an elastomeric check valve type nozzle to form the desired size of flotation bubbles in the column. The system further comprises an installation configuration and valving arrangement for the easy, efficient replacement of any worn or damaged elastomeric check valve type nozzle during the operation of the flotation separation column.
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: October 14, 1997
    Assignee: Baker Hughes Incorporated
    Inventors: Jeffrey D. McKay, Randy A. Ynchausti, Paul M. Keyser