Patents by Inventor L. Thomas McDaniel

L. Thomas McDaniel 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).

  • Aluminosilicate ceramic proppant for gas and oil well fracturing and method of forming same
    Patent number: 4555493
    Abstract: An aluminosilicate ceramic product or article and a method of forming the article from as-mined ore. The product is useful as a proppant in gas and oil well fracturing. The ratio, on a calcined basis, of alumina to silica is between approximately 2.2 to 4.0. The amount of iron in the product is controlled as a function of the alumina to silica ratio so as to produce products having less than ten percent (10%) crush loss when subjected to a force of 10,000 psi.
    Type: Grant
    Filed: December 7, 1983
    Date of Patent: November 26, 1985
    Assignee: Reynolds Metals Company
    Inventors: David R. Watson, Val G. Carithers, L. Thomas McDaniel