Prior Treatment Of Dispersed Phase Patents (Class 149/19.93)
  • Patent number: 8864923
    Abstract: A double base propellant modifier uses a combination of a lead component, a tin component and a copper component in physical contact to effect super-rate burning of double base propellants with defined plateau and mesa burning rate characteristics.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: October 21, 2014
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Stephen N. Stiles, Paul R. McCool
  • Patent number: 8828161
    Abstract: A double base propellant modifier uses a lead-tin component with a defined amount of lead and a copper component with a defined surface area to effect super-rate burning of double base propellants with defined plateau and mesa burning rate characteristics.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: September 9, 2014
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Stephen N. Stiles, Paul R. McCool
  • Patent number: 6558488
    Abstract: The invention relates to a method of making pourable, plastic-bound explosive charges or rocket propellants, to which a metal powder having essentially spherically shaped grains is added. To avoid an increase in the viscosity of the explosive charge or the rocket propellant through polar groups attached to the surface of the metal powder, it is suggested according to the invention that the polar groups of the metal powder be saturated with SiR3 groups (Si=silane; R=organic residue) before the metal powder is added to the explosive mixture. As a result, the polar groups can no longer react with the isocyanates of the explosive charge or the rocket propellant and the specific surface of the respective metal powder, as well as the viscosity of the charges, is reduced.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: May 6, 2003
    Assignee: Rheinmetall W & M GmbH
    Inventors: Paul Wanninger, Rainer Böhm, Horst Pinkernelle