Patents by Inventor James P. Cunnion, Jr.

James P. Cunnion, 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).

  • Explosive systems
    Patent number: 4664728
    Abstract: Water-based explosives that use siliceous boron-containing microspheres as sensitizing agents are stabilized by adding multivalent metal ions to the explosives. Zinc salts are especially useful.
    Type: Grant
    Filed: November 21, 1985
    Date of Patent: May 12, 1987
    Assignee: PQ Corporation
    Inventors: James P. Cunnion, Jr., Bruce W. Sands
  • Process for surface modified hollow microspheres
    Patent number: 4411847
    Abstract: Non-fused hollow glass microspheres that consist primarily of silicate are rendered more water-resistant by treatment with multivalent metals. The hollow microspheres are slurried with water and then a solution of a multivalent metal salt such as Al.sub.2 (SO.sub.4).sub.3 is added to the slurry. The rate of the addition is controlled so that the pH can be regulated. Separating, washing and drying complete the preparation.
    Type: Grant
    Filed: May 27, 1982
    Date of Patent: October 25, 1983
    Assignee: PQ Corporation
    Inventors: David I. Netting, Bruce D. Spivack, James P. Cunnion, Jr.
  • Surface modified hollow microspheres
    Patent number: 4340642
    Abstract: Non-fused hollow glass microspheres that consist primarily of silicate are rendered more water-resistant by treatment with multivalent metals. The hollow microspheres are slurried with water and then a solution of a multivalent metal salt such as Al.sub.2 (SO.sub.4).sub.3 is added to the slurry. The rate of the addition is controlled so that the pH can be regulated. Separating, washing and drying complete the preparation.
    Type: Grant
    Filed: June 20, 1980
    Date of Patent: July 20, 1982
    Assignee: PQ Corporation
    Inventors: David I. Netting, Bruce D. Spivack, James P. Cunnion, Jr.