Patents Represented by Attorney William J. O'Brien

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  • Plasticizer system for propellant compositions
    Patent number: 4482409
    Abstract: This invention discloses the synthesis of a dilinoleate ester plasticizer and its use as a plasticizer for propellant compositions.
    Type: Grant
    Filed: May 23, 1983
    Date of Patent: November 13, 1984
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: William D. Stephens, Brenda K. Rodman
  • Plasticizer system for propellant compositions
    Patent number: 4482411
    Abstract: The present invention discloses the preparation of a novel family of polytetramethyleneglycol monooctaneoate ester-ethers and their use as internal plasticizers for propellant compositions.
    Type: Grant
    Filed: May 23, 1983
    Date of Patent: November 13, 1984
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: William D. Stephens, Linda E. Jones
  • Azido nitramino ether containing solid propellants
    Patent number: 4482404
    Abstract: This invention involves the synthesis of a novel family of azido nitramino ethers and their utilization as energetic plasticizers for advanced solid propellant compositions. They include the novel compounds bis (2-azidoethoxymethyl) nitramine and 1,12-diazido-3,10-dioxa-5,8-dinitrazadodecane.
    Type: Grant
    Filed: December 6, 1983
    Date of Patent: November 13, 1984
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Edward F. Witucki, Joseph E. Flanagan
  • Plasticizer system for propellant compositions
    Patent number: 4482410
    Abstract: This invention discloses the synthesis of a polytetramethyleneglycol pivalate polyether and its use as a plasticizer for propellant compositions.
    Type: Grant
    Filed: May 23, 1983
    Date of Patent: November 13, 1984
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: William D. Stephens, Linda E. Jones
  • Plasticizer system for propellant compositions
    Patent number: 4482408
    Abstract: The present invention concerns itself with the synthesis of N-octyldecylbutyl urethane and its use as an internal plasticizer for solid propellants.
    Type: Grant
    Filed: May 23, 1983
    Date of Patent: November 13, 1984
    Assignee: The United States of Amercia as represented by the Secretary of the Air Force
    Inventors: William D. Stephens, Brenda K. Rodman
  • Plasticizer system for propellant compositions
    Patent number: 4482407
    Abstract: The present invention concerns itself with the synthesis of N-octyl(2-ethylhexyl)urethane and its use as an internal plasticizer for isocyanate-cured solid propellant compositions.
    Type: Grant
    Filed: May 23, 1983
    Date of Patent: November 13, 1984
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: William D. Stephens, Brenda K. Rodman
  • Pseudo-p-1,1,2,2,9,9,10,10-octofluoro[2,2]-p-cyclophane bis-acid chloride
    Patent number: 4476062
    Abstract: Polyaromatic ether-sulfone-ketones containing fluoro-substituted-p-cyclophane units were prepared from isophthaloyl chloride, terephthaloyl chloride, diphenyl ether, diphenoxydiphenyl sulfone and a small amount of either 1,1,2,2,9,9,10,10-octafluoro[2,2]-p-cyclophane (type B) or pseudo-p-1,1,2,2,9,9,10,10-octofluoro[2,2]-p-cyclophane bis-acid chloride (type A) by a Friedel-Crafts type polymerization procedure. The p-cyclophane units were incorporated as cross-linking sites.
    Type: Grant
    Filed: November 16, 1983
    Date of Patent: October 9, 1984
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Carl S. Marvel, See Lin
  • Method for introducing fluorine into an aromatic ring
    Patent number: 4476337
    Abstract: A process for introducing a fluorine atom into an aromatic hydrocarbon by effecting a substitution reaction between an aromatic hydrocarbon and an NF.sub.4.sup.+ cation containing salt.
    Type: Grant
    Filed: September 20, 1983
    Date of Patent: October 9, 1984
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Karl O. Christe, Carl J. Schack
  • Gas contamination detection device
    Patent number: 4472356
    Abstract: A device for detecting the degree of contamination of a gas filter system by a contaminating gas. The device comprises a filter chamber having a pair of grids positioned therewithin and coated with a semiconductive polymer whole bulk conductivity changes due to a chemical reaction between the polymer and a contaminating gas. Measurement of the change is then utilized to indicate the degree of contamination in the filter system.
    Type: Grant
    Filed: January 27, 1982
    Date of Patent: September 18, 1984
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Edward S. Kolesar, Jr.
  • Synthesis of pentafluorotellurium hypofluorite
    Patent number: 4462975
    Abstract: The present invention concerns itself with a method for synthesizing hypofluorite compounds by utilizing fluorine fluorosulfate as a fluorinating agent and to a novel pentafluorotellurium hypofluorite compound prepared thereby.
    Type: Grant
    Filed: March 24, 1983
    Date of Patent: July 31, 1984
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Carl J. Schack, William W. Wilson, Karl O. Christe
  • Singlet delta oxygen generator
    Patent number: 4461756
    Abstract: A method and apparatus for producing molecular oxygen in the excited singlet delta oxygen electronic state for use as an excited species reactant in a high energy, continuous-wave, chemically pumped laser. In this invention, small amounts of sodium hydroxide and hydrogen peroxide are continuously mixed, reacted, cooled and then combined with chlorine to form a mixture which is injected into a mixing chamber as very fine droplets to provide an efficient means for effecting a reaction which produces excited molecular oxygen.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: July 24, 1984
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: John D. Rockenfeller
  • Method for the preparation of poly (carbonyl fluoride) oligomers
    Patent number: 4460514
    Abstract: An improved method for synthesizing poly (carbonyl fluoride) oligomers by using bis(trifluoromethyl)trioxide as a reaction initiator in the photo-oxidation of F-3 methylbutene-1.
    Type: Grant
    Filed: September 16, 1982
    Date of Patent: July 17, 1984
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Keith B. Baucom, Burrell N. Hamon
  • Azido nitramino ethers
    Patent number: 4440687
    Abstract: This invention involves the synthesis of a novel family of azido nitramino ethers and their utilization as energetic plasticizers for advanced solid propellant compositions. They include the novel compounds bis (2-azidoethoxymethyl) nitramine and 1,12-diazido-3,10-dioxa-5,8-dinitrazadodecane.
    Type: Grant
    Filed: April 8, 1982
    Date of Patent: April 3, 1984
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Edward F. Witucki, Joseph E. Flanagan
  • Azido fluorodinitro amines
    Patent number: 4432815
    Abstract: This invention involves the synthesis of a novel family of azido fluorodinitro amines and their utilization as energetic plasticizers for advanced solid propellant compositions.
    Type: Grant
    Filed: April 12, 1983
    Date of Patent: February 21, 1984
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Milton B. Frankel, Edward F. Witucki
  • Azido esters
    Patent number: 4432814
    Abstract: This invention involves the synthesis of a novel family of azido esters and their utilization as energetic plasticizers for advanced solid propellant compositions. This family includes as an illustrative member, the novel compound 6-azidohexyl-6-azidohexanoate.
    Type: Grant
    Filed: April 13, 1983
    Date of Patent: February 21, 1984
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Edward F. Witucki, Joseph E. Flanagan
  • Propellant containing an azidonitrocarbamate plasticizer
    Patent number: 4432817
    Abstract: This invention involves the synthesis of a novel family of azido nitrocarbamates and their utilization as energetic liquid plasticizers for advanced solid propellant compositions. The novel family of plasticizers is represented specifically by the novel compound, 1,3-diazido-2-propyl-N-nitro-N-trinitropropyl carbamate.
    Type: Grant
    Filed: March 25, 1982
    Date of Patent: February 21, 1984
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Milton B. Frankel, Edward F. Witucki
  • Method for introducing fluorine into an aromatic ring
    Patent number: 4423260
    Abstract: A process for introducing a fluorine atom into an aromatic hydrocarbon by effecting a substitution reaction between an aromatic hydrocarbon and an NF.sub.4.sup.+ cation containing salt.
    Type: Grant
    Filed: January 27, 1982
    Date of Patent: December 27, 1983
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Karl O. Christe, Carl J. Schack
  • Azido esters
    Patent number: 4419286
    Abstract: This invention involves the synthesis of a novel family of azido esters and their utilization as energetic plasticizers for advanced solid propellant compositions. This family includes as an illustrative member, the novel compound 6-azidohexyl-6-azidohexanoate.
    Type: Grant
    Filed: April 21, 1982
    Date of Patent: December 6, 1983
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Edward F. Witucki, Joseph E. Flanagan
  • Azido fluorodinitro amines
    Patent number: 4419285
    Abstract: This invention involves the synthesis of a novel family of azido fluorodinitro amines and their utilization as energetic plasticizers for advanced solid propellant compositions.
    Type: Grant
    Filed: February 19, 1982
    Date of Patent: December 6, 1983
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Milton B. Frankel, Edward F. Witucki
  • Coprecipitation process for thermionic cathode type materials
    Patent number: 4411827
    Abstract: A method for fabricating a homogenous and uniformly sized mixture of alkaline earth metal carbonates found to be especially useful as an emission type coating material for application to a cathodic element of a thermionic vacuum tube.
    Type: Grant
    Filed: June 23, 1982
    Date of Patent: October 25, 1983
    Inventor: David M. Corneille