Patents by Inventor James A. Viecelli

James A. Viecelli 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).

  • Patent number: 7707819
    Abstract: Hollow RX-08HD cylindrical charges were loaded with boron and PTFE, in the form of low-bulk density powders or powders dispersed in a rigid foam matrix. Each charge was initiated by a Comp B booster at one end, producing a detonation wave propagating down the length of the cylinder, crushing the foam or bulk powder and collapsing the void spaces. The PdV work done in crushing the material heated it to high temperatures, expelling it in a high velocity fluid jet. In the case of boron particles supported in foam, framing camera photos, temperature measurements, and aluminum witness plates suggest that the boron was completely vaporized by the crush wave and that the boron vapor turbulently mixed with and burned in the surrounding air.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: May 4, 2010
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: James A. Viecelli, Lowell L. Wood, Muriel Y. Ishikawa, John H. Nuckolls, Phillip F. Pagoria
  • Publication number: 20050230018
    Abstract: Hollow RX-08HD cylindrical charges were loaded with boron and PTFE, in the form of low-bulk density powders or powders dispersed in a rigid foam matrix. Each charge was initiated by a Comp B booster at one end, producing a detonation wave propagating down the length of the cylinder, crushing the foam or bulk powder and collapsing the void spaces. The PdV work done in crushing the material heated it to high temperatures, expelling it in a high velocity fluid jet. In the case of boron particles supported in foam, framing camera photos, temperature measurements, and aluminum witness plates suggest that the boron was completely vaporized by the crush wave and that the boron vapor turbulently mixed with and burned in the surrounding air.
    Type: Application
    Filed: September 22, 2004
    Publication date: October 20, 2005
    Inventors: James Viecelli, Lowell Wood, Muriel Ishikawa, John Nuckolls, Phillip Pagoria
  • Patent number: 6875294
    Abstract: Disclosed herein are light metal explosives, pyrotechnics and propellants (LME&Ps) comprising a light metal component such as Li, B, Be or their hydrides or intermetallic compounds and alloys containing them and an oxidizer component containing a classic explosive, such as CL-20, or a non-explosive oxidizer, such as lithium perchlorate, or combinations thereof. LME&P formulations may have light metal particles and oxidizer particles ranging in size from 0.01 ?m to 1000 ?m.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: April 5, 2005
    Assignee: The Regents of the University of California
    Inventors: Lowell L. Wood, Muriel Y. Ishikawa, John H. Nuckolls, Phillip F. Pagoria, James A. Viecelli
  • Publication number: 20040256038
    Abstract: Disclosed herein are light metal explosives, pyrotechnics and propellants (LME&Ps) comprising a light metal component such as Li, B, Be or their hydrides or intermetallic compounds and alloys containing them and an oxidizer component containing a classic explosive, such as CL-20, or a non-explosive oxidizer, such as lithium perchlorate, or combinations thereof. LME&P formulations may have light metal particles and oxidizer particles ranging in size from 0.01 &mgr;m to 1000 &mgr;m.
    Type: Application
    Filed: November 12, 2002
    Publication date: December 23, 2004
    Applicant: The Regents of the University of California
    Inventors: Lowell L. Wood, Muriel Y. Ishikawa, John H. Nuckolls, Phillip F. Pagoria, James A. Viecelli