Patents by Inventor Zhu Slocum-Wang

Zhu Slocum-Wang 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).

  • Hypergolic liquid or gel fuel mixtures
    Patent number: 8435364
    Abstract: Hypergolic liquid or gel fuel mixtures utilized in bipropellant propulsion systems are disclosed as replacements for fuels containing toxic monomethylhydrazine. The fuel mixtures include one or more amine azides mixed with one or more tertiary diamine, tri-amine or tetra-amine compounds. The fuel mixtures include N,N,N?,N?-tetramethylethylenediamine (TMEDA) mixed with 2-N,N-dimethylaminoethylazide (DMAZ), TMEDA mixed with tris(2-azidoethyl)amine (TAEA), and TMEDA mixed with one or more cyclic amine azides. Each hypergolic fuel mixture provides a reduced ignition delay for combining with an oxidant in fuel propellant systems. The fuel mixtures have advantages in reduced ignition delay times compared to ignition delay times for each unmixed component, providing a synergistic effect which was not predictable from review of each component's composition.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: May 7, 2013
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: William H. Stevenson, III, LaShanda D. Felton, Zhu Slocum-Wang
  • Hypergolic Liquid Or Gel Fuel Mixtures
    Publication number: 20110272071
    Abstract: Hypergolic liquid or gel fuel mixtures utilized in bipropellant propulsion systems are disclosed as replacements for fuels containing toxic monomethylhydrazine. The fuel mixtures include one or more amine azides mixed with one or more tertiary diamine, tri-amine or tetra-amine compounds. The fuel mixtures include N,N,N?,N?-tetramethylethylenediamine (TMEDA) mixed with 2-N,N-dimethylaminoethylazide (DMAZ), TMEDA mixed with tris(2-azidoethyl)amine (TAEA), and TMEDA mixed with one or more cyclic amine azides. Each hypergolic fuel mixture provides a reduced ignition delay for combining with an oxidant in fuel propellant systems. The fuel mixtures have advantages in reduced ignition delay times compared to ignition delay times for each unmixed component, providing a synergistic effect which was not predictable from review of each component's composition.
    Type: Application
    Filed: July 25, 2011
    Publication date: November 10, 2011
    Applicant: The United States of America as represented by the Secretary of the Army
    Inventors: William H. Stevenson, III, LaShanda D. Felton, Zhu Slocum-Wang
  • Hypergolic Liquid Or Gel Fuel Mixtures
    Publication number: 20080127551
    Abstract: Hypergolic liquid or gel fuel mixtures utilized in bipropellant propulsion systems are disclosed as replacements for fuels containing toxic mono-methylhydrazine. The fuel mixtures include one or more amine azides mixed with one or more tertiary diamine, tri-amine or tetra-amine compounds. The fuel mixtures include N,N,N?,N?-tetramethylethylenediamine (TMEDA) mixed with 2-N,N-dimethylaminoethylazide (DMAZ), TMEDA mixed with tris(2-azidoethyl)amine (TAEA), and TMEDA mixed with one or more cyclic amine azides. Each hypergolic fuel mixture provides a reduced ignition delay for combining with an oxidant in fuel propellant systems. The fuel mixtures have advantages in reduced ignition delay times compared to ignition delay times for each unmixed component, providing a synergistic effect which was not predictable from review of each component's composition.
    Type: Application
    Filed: November 30, 2006
    Publication date: June 5, 2008
    Applicant: United States of America, represented by Secretary of the U.S. Army
    Inventors: William H. Stevenson, III, LaShanda D. Felton, Zhu Slocum-Wang