Patents by Inventor Alan R. Dunbar

Alan R. Dunbar 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).

  • Process and system of wasting fly ash and product produced thereby
    Patent number: 4472198
    Abstract: A method and system for disposing of fly ash together with water or liquid industrial waste, and the product produced thereby, in an environmentally acceptable manner which includes combining dry fly ash with a liquid additive in an amount of about 5%-25% of weight of liquid additive to weight of fly ash in a mixing operation which closely controls the liquid additive to yield a uniformly conditioned product which can be subjected to earth handling equipment pressures immediately and which eliminates cell preparation and greatly reduces leaching at the disposal site.
    Type: Grant
    Filed: January 29, 1982
    Date of Patent: September 18, 1984
    Assignee: American Fly Ash Company
    Inventors: Mitchell L. Nowicki, Alan R. Dunbar, Joseph H. Pound