Patents Represented by Attorney John Callaghan
  • Patent number: 5998661
    Abstract: A process for selective, direct oxidation of amine or amine hydrochloride mpounds is described. It uses mixed oxidizing agents of monopersulfate and ozone.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: December 7, 1999
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Abdollah Bashir-Hashemi
  • Patent number: 5969155
    Abstract: The present invention is directed to the synthesis of useful products from the explosive trinitrotoluene. This substance has a limited shelf life as a reliable explosive and large quantities of it have and will become surplus. Ecologically safe, and preferably commercially useful ways of disposing of it are therefore much to be desired. In the present invention the end products are nitroindoles of the general formula 4-Z.sup.1,6-Z.sup.2 indole wherein Z.sup.1 and Z.sup.2 are the same or different and are halo or nitro provided at least one of said groups is nitro.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: October 19, 1999
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Sreenivasa R. Eturi, Abdollah Bashir-Hashemi, Sury Iyer
  • Patent number: 5894061
    Abstract: The diffusion through a membrane assaying apparatus and method facilitates rapid detection of small or larger molecular weight substances such as hazardous wastes, toxic chemicals or the like by using a semipermeable membrane having a predetermined molecular weight cutoff. The semipermeable membrane is provided as part of a container having a removable barrier which facilitates control of diffusion through the membrane. The assaying method includes the use of a reaction mechanism for detection of a predetermined substance. The reaction mechanism includes one or more reagents which are designed to either react or compete for a substance for which assaying is being performed. By selecting the proper reagents and molecular weight cutoff of the semipermeable membrane, the presence or absence of a reaction such as a color change or production of vapor provides indication whether the substance being assaying for is present in the test sample.
    Type: Grant
    Filed: January 29, 1996
    Date of Patent: April 13, 1999
    Inventor: Cynthia A. Ladouceur
  • Patent number: 5831099
    Abstract: Overall, the invention provides the chemistry for the compounds and for the processes to prepare compounds derived from 1,5-diazacyclooctanes. This makes available high density, high melting point, thermally stable small and medium ring nitrogen heterocycles that may also contain N-nitro, C-nitro or other functional groups. The compounds include cyclooctanes, bicyclo octanes, propellanes and functionalized derivatives of the above compounds. The preparations can include transannular cyclizations. The materials have several applications; e.g., the polynitro compounds are energetic materials.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: November 3, 1998
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Paritosh R. Dave, Theodore Axenrod, Farhad Forohar
  • Patent number: 5798481
    Abstract: A high energy propellant, comprising at least one oxidizer; a nitrocellul binder; an ethyl centralite stabilizer; a plasticizer; and an oxetane thermoplastic elastomer energetic binder. The oxetane thermoplastic elastomer energetic binder comprises from about zero percent to about fifteen percent by weight of the propellant. The preferred oxidizer is selected from the group consisting of CL-20, TNAZ, RDX, HMX and mixtures thereof. The oxidizer comprises from about five percent to about forth percent by weight of the propellant. The nitrocellulose binder comprises from about fifteen percent to about fifty percent by weight of the propellant and the ethyl centralite stabilizer comprises from about 0.7 percent to about 1.5 percent by weight of the propellant. The plasticizer is selected from the group consisting of TNAZ, BTTN, TMETN, TEGDN, BDNPA/F, methyl NENA, ethyl NENA and mixtures thereof. The plasticizer comprises from about five percent to about thirty-five percent by weight of the propellant.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: August 25, 1998
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Thelma Manning, Bernard Strauss, Joseph P. Prezelski, Sam Moy
  • Patent number: 5716557
    Abstract: A method of formulating high energy explosives and propellants, including e steps of melting the explosive at a temperature just above its melting temperature, admixing and dissolving or plasticizing a binder, and extruding or casting the resultant solution into a useful form for further forming the resulting material into a munitions. The first step in this method includes the use of any high energy explosive material. Examples of these include hexanitrohexaazaisowurtzitane or CL-20, 1,3,3-trinitroazetidine or TNAZ, 2,4,6-trinitrotoluene or S-TNT, 1,3,5-trinitrobenzene or S-TNB, HMX, RDX, butane-trio-trinitrate or BTTN, trimethylolethane trinitrate or TMETN; triethylene glycol dinitrate or TEGDN, bis, 2,2-dinitro propyl acetal/bis 2,2 dinitro propyl formal or BDNPA/F, methyl nitrato ethyl nitramine or methyl NENA, ethyl NENA, mixtures thereof and the like.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: February 10, 1998
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Bernard Strauss, Thelma Manning, Joseph P. Prezelski, Sam Moy
  • Patent number: H1563
    Abstract: A method and device for detecting bacteria by forming an immunoassay ladder sing a biological substance (Ag) adsorbed onto a surface, to which has been added an immunological biochemical ladder (Ab) and beta-galactosidase enzyme (gal) to form a Ag-Ab-gal system. The system is added to an aqueous solution of an enzyme selected from ortho-nitrophenylgalactopyranoside and ortho-nitrophenylgalactosidase enzyme. The enzyme reacts with the gal to produce ortho-nitrophenol (ONP) such that the amount of ortho-nitrophenol (ONP) produced may be detected by measuring the vapor pressure generated by the ONP using an ion mobility spectrometer monitor. The pressure of the ONP is in proportion to the amount of biological substance present in the system. In a preferred embodiment, the ion mobility spectrometer monitor includes display means for indicating the quantity of bacteria measured.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: July 2, 1996
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: A. Peter Snyder, Maryalice Miller, David A. Blyth