Patents by Inventor Walther Engel

Walther Engel 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).

  • Solid propellant based on phase-stabilized ammonium nitrate
    Patent number: 5596168
    Abstract: A solid propellant for rocket propulsion systems or gas generators compri 35 to 80 wt. % ammonium nitrate (AN) in pure or nickel oxide, potassium or cesium nitrate phase-stabilized form (PSAN) with an average particle size of 5 to 200 .mu.m, 15 to 50 wt. % of a binder system of a binder polymer and an energy-rich plasticizer, as well as 0.2 to 5 wt. % of a burning moderator of vanadium/molybdenum oxide in the form of an oxide mixture or mixed oxide.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: January 21, 1997
    Assignee: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Klaus Menke, Jutta Bohnlein-Mauss, Helmut Schmid, Klaus M. Bucerius, Walther Engel
  • Solid propellant based on phase-stabilized ammonium nitrate
    Patent number: 5589661
    Abstract: A solid propellant for rocket propulsion systems or gas generators compri 35 to 80 wt. % ammonium nitrate (AN) with an average particle size of 5 to 200 .mu.m, which is phase-stabilized (PSAN) by chemical reaction with Cu0 or Zn0, 15 to 50 wt. % of a binder system of a binder polymer and an energy-rich plasticizer, as well as 0.2 to 5.0 wt. % of a burning moderator of vanadium/molybdenum oxide as an oxide mixture or mixed oxide.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: December 31, 1996
    Assignee: Fraunhofer-Gesselschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Klaus Menke, Jutta Bohnlein-Mauss, Helmut Schmid, Klaus M. Bucerius, Walther Engel