Patents by Inventor George C. Sisco

George C. Sisco 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).

  • Reaction product of normal lead beta resorcylate and monobasic cupric salicylate
    Patent number: 4001287
    Abstract: An organo-metallic ballistic modifier produced as an evaporation residue by he reaction of normal lead beta resorcylate and monobasic cupric salicylate in an aqueous solution of water or alcohol at an elevated temperature (180.degree. F - 220.degree. F). The modifier allows the use of a solvent or solvent/solventless process in the production of double base propellants exhibiting a mesa burning rate.
    Type: Grant
    Filed: February 18, 1972
    Date of Patent: January 4, 1977
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Thomas E. Dunigan, George C. Sisco
  • Ballistic modifier resistant to hydrolysis
    Patent number: 3994757
    Abstract: A novel ballistic modifier complex is produced by mixing and interacting an rganic isocyanate with lead beta resorcylate and cupric salicylate in an inert solvent. The complex product obtained after removal of the solvent, when incorporated into a nitrocellulose-nitroglycerine double base propellant, yields a propellant composition of excellent ballistic properties and improved stability against development of exudate which inhibits ignition.
    Type: Grant
    Filed: May 4, 1971
    Date of Patent: November 30, 1976
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Thomas E. Dunigan, George C. Sisco, Lawrence W. Pell
  • Novel ballistic modifier resistant to hydrolysis
    Patent number: 3994946
    Abstract: A novel ballistic modifier complex is produced by mixing and interacting an rganic isocyanate with lead beta resorcylate and cupric salicylate in an inert solvent. The complex product obtained after removal of the solvent, when incorporated into a nitrocellulose-nitroglycerine double base propellant, yields a propellant composition of excellent ballistic properties and improved stability against development of exudate which inhibits ignition.
    Type: Grant
    Filed: January 3, 1973
    Date of Patent: November 30, 1976
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Thomas E. Dunigan, George C. Sisco, Lawrence W. Pell
  • Process for preparing double base propellants containing ballistic modifier
    Patent number: 3989776
    Abstract: An organo-metallic ballistic modifier produced as an evaporation residue by the interaction of two or more organo-metallic salts in an aqueous solution of water or alcohol at an elevated temperature (180.degree. F - 220.degree. F). The modifier allows the use of a solvent or solvent/solventless process in the production of double base propellants exhibiting a mesa burning rate.
    Type: Grant
    Filed: October 7, 1970
    Date of Patent: November 2, 1976
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Thomas E. Dunigan, George C. Sisco