Patents by Inventor Mitchell S. Riddle

Mitchell S. Riddle 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).

  • Volcanic fly ash and kiln dust compositions and a process for making articles therefrom
    Patent number: 5425807
    Abstract: The present invention relates to a novel composition which is useful for forming construction blocks and encapsulating hazardous materials, a process for producing blocks and encapsulating the material, and blocks made of the material. This composition is a mixture of klin dust or volcanic fly ash and aggregate. The process comprises the steps of (a) blending a dry mixture comprising the kiln dust or volcanic fly ash mixture with water; (b) transferring the blended mixture into a compression zone and (c) compressing the blended mixture in the compression zone to form a brick of the desired size.
    Type: Grant
    Filed: July 14, 1994
    Date of Patent: June 20, 1995
    Assignee: TIDE Company
    Inventor: Mitchell S. Riddle
  • Fly ash composition and process for making articles therefrom
    Patent number: 5405441
    Abstract: The present invention relates to a novel composition which is useful for forming construction blocks and encapsulating hazardous materials, a process for producing blocks and encapsulating the material, and blocks made of the material. This composition is a mixture of pozzoulanic fly ash and bottom ash. The weight ratio of fly ash:bottom ash is preferably in the range 80:20% by weight to 20:80% by weight. The process comprises the steps of (a) blending a dry mixture comprising the ash mixture with water; (b) transferring the blended mixture into a compression zone and (c) compressing the blended mixture in the compression zone to form a brick of the desired size.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: April 11, 1995
    Assignee: Tide Company
    Inventor: Mitchell S. Riddle
  • Fly ash composition and process for making articles therefrom
    Patent number: 5374307
    Abstract: The present invention relates to a novel composition which is useful for forming construction blocks and encapsulating hazardous materials, a process for producing blocks and encapsulating the material, and blocks made of the material. This composition is a mixture of pozzoulanic fly ash and bottom ash. The weight ratio of fly ash:bottom ash is preferably in the range 80:20% by weight to 20:80% by weight. The process comprises the steps of (a) blending a dry mixture comprising the ash mixture with water; (b) transferring the blended mixture into a compression zone and (c) compressing the blended mixture in the compression zone to form a brick of the desired size.
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: December 20, 1994
    Inventor: Mitchell S. Riddle
  • Volcanic fly ash and kiln dust compositions, and a process for making articles therefrom
    Patent number: 5366548
    Abstract: The present invention relates to a novel composition which is useful for forming construction blocks and encapsulating hazardous materials, a process for producing blocks and encapsulating the material, and blocks made of the material. This composition is a mixture of kiln dust or volcanic fly ash and aggregate. The process comprises the steps of (a) blending a dry mixture comprising the kiln dust or volcanic fly ash mixture with water; (b) transferring the blended mixture into a compression zone and (c) compressing the blended mixture in the compression zone to form a brick of the desired size.
    Type: Grant
    Filed: April 17, 1992
    Date of Patent: November 22, 1994
    Inventor: Mitchell S. Riddle