Patents by Inventor Frederick Rubel, Jr.

Frederick Rubel, Jr. 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).

  • Pulsed regeneration of adsorption column
    Patent number: 4462904
    Abstract: An activated carbon adsorption column for the treatment of waste water is continuously sterilized and/or regenerated in pulsed batches of carbon amounting to 5 to 25 percent of the working column quantity transferred, alternately, from the influent face of the column to one of two, off-stream blow case vessels for steam processing and returned to the effluent face of the working column upon the next programmed pulsing interim.
    Type: Grant
    Filed: August 8, 1983
    Date of Patent: July 31, 1984
    Assignee: Westvaco Corporation
    Inventors: Donald G. Hager, Michael L. Massey, Frederick Rubel, Jr.
  • Pulsed regeneration of adsorption column
    Patent number: 4416798
    Abstract: An activated carbon adsorption column for the treatment of waste water is continuously sterilized and/or regenerated in pulsed batches of carbon amounting to 5 to 25 percent of the working column quantity transferred, alternately, from the influent face of the column to one of two, off-stream blow case vessels for steam processing and returned to the effluent face of the working column upon the next programmed pulsing interim.
    Type: Grant
    Filed: March 12, 1982
    Date of Patent: November 22, 1983
    Assignee: Westvaco Corporation
    Inventors: Donald G. Hager, Michael L. Massey, Frederick Rubel, Jr.
  • Water treatment for selective removal of nitrates
    Patent number: 4267057
    Abstract: Water is treated to selectively remove substantially all of the nitrates present. This selective removal of nitrates is accomplished by adjusting the pH of the water to be treated, if necessary, to a pH of less than 8, and then passing the pH-controlled water through activated carbon. In one of the preferred embodiments, the spent activated carbon is substantially completely regenerated by backwashing to permit reuse of the carbon.
    Type: Grant
    Filed: January 18, 1980
    Date of Patent: May 12, 1981
    Assignee: Aluminum Company of America
    Inventors: Donald G. Hager, Frederick Rubel, Jr.