Patents by Inventor Robert S. Butler

Robert S. Butler 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).

  • Patent number: 4740362
    Abstract: High efficiency scrubbing of SO.sub.2 from stack gases by contact with a sodium based liquor is achieved by adjusting the pH of the scrubber liquor supplied to be in the range of 7.00 to 8.00; and a source of such liquor in a dual alkali system is disclosed in which a mixture of slaked lime and limestone is reacted with spent liquor in two stages one of which is at pH above 8.00, the other of which is at a pH below about 6.8 and the pH of the resulting regenerated liquor is adjusted to the desired pH range.
    Type: Grant
    Filed: January 5, 1987
    Date of Patent: April 26, 1988
    Assignee: Central Illinois Public Service Company
    Inventors: Paul F. Claerbout, Steven J. Harvey, Robert S. Butler, Jerry L. Simpson, James H. Wilhelm
  • Patent number: 4411875
    Abstract: A dual alkali process and an apparatus for the removal of sulfur oxides from a gas stream containing such sulfur oxides, is disclosed.
    Type: Grant
    Filed: March 25, 1982
    Date of Patent: October 25, 1983
    Assignee: Central Illinois Public Service Company
    Inventors: Robert S. Butler, Paul F. Claerbout, Louis P. Kent, Randy S. Cleland, James H. Wilhelm, Richard E. Micko
  • Patent number: 4286066
    Abstract: Apparatus for continuously fermenting a moist particulate feed and distilling the fermentation product is disclosed in which a pressure-locked auger forces a moist particulate feed from a hopper into a fermentation tank, liquor is removed from the tank and solids are separated therefrom to produce a beer which is distilled in a distillation column. A combustion engine powers the auger and the means for separating solids, and the engine exhaust surrounds an inlet section of said auger to help heat the pressurized feed therein to produce fermentable sugar within the auger, and the auger includes a section passing to the tank in heat exchange relation to the distillation column to provide heat for distillation. The column is a multistage column angled to face the sun and has an upper glass plate to allow solar radiation to enter and penetrate between the foraminous plates of the column.
    Type: Grant
    Filed: June 24, 1980
    Date of Patent: August 25, 1981
    Inventors: Robert S. Butler, Lance B. Crombie