Patents by Inventor Wm. Cornelius Hall

Wm. Cornelius Hall 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).

  • Cementitious compositions with early high strength development and methods for controlling setting rate
    Patent number: 4402749
    Abstract: A composition is supplied for filling pot holes and other types of structural deterioration. The composition consist of hydraulic cement and an alkali metal silicate. The silicate includes a molar ratio of silican dioxide to alkali metal oxide from 0.4 to 4.0. The silicate is in a concentration ranging from 0.2 to 20 percent by weight of the cement. A method is also provided which comprises repairing a deteriorating structure by inserting therein a cementitious composition and controlling the rate of setting of the composition by the inclusion therein of sodium silicate in the molar ratio of silicon dioxide to sodium oxide of from 0.4 to 4.0.
    Type: Grant
    Filed: August 10, 1979
    Date of Patent: September 6, 1983
    Assignee: Chemtree Corporation
    Inventors: Wm. Cornelius Hall, J. Merriam Peterson