Patents by Inventor Tony A. Rizk

Tony A. Rizk 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).

  • Aeration system
    Patent number: 5514285
    Abstract: New techniques and means for their utilization are described for substantially improving gas to liquid transfer including aeration of hydroelectric project tailwaters and treatment of sewage sludge and sewage treatment effluent or other wastewaters. Liquid flow is directed over an infuser device to separate the liquid into a plurality of free-falling curtains disposed to impinge upon a collection pool therebeneath wherein a substantial number of gas bubbles entrained by any particular curtain are acted upon by successive impingements of downstream curtains to effect turbulent interaction, shearing, and reentrainment of such bubbles and substantially increase the residence time thereof in the resulting recombined flow.
    Type: Grant
    Filed: July 12, 1995
    Date of Patent: May 7, 1996
    Assignee: Tennessee Valley Authority
    Inventors: Tony A. Rizk, Gary E. Hauser
  • Aeration system
    Patent number: 5462657
    Abstract: New techniques and means for their utilization are described for substantially improving gas to liquid transfer including aeration of hydroelectric project tailwaters and treatment of sewage sludge and sewage treatment effluent or other wastewaters. Liquid flow is directed over an infuser device to separate the liquid into a plurality of free-falling curtains disposed to impinge upon a collection pool therebeneath wherein a substantial number of gas bubbles entrained by any particular curtain are acted upon by successive impingements of downstream curtains to effect turbulent interaction, shearing, and reentrainment of such bubbles and substantially increase the residence time thereof in the resulting recombined flow.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: October 31, 1995
    Assignee: Tennessee Valley Authority
    Inventors: Tony A. Rizk, Gary E. Hauser