Patents Represented by Attorney H. B. Field
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Patent number: 4310502Abstract: A singlet delta oxygen generator 10 comprises a static or motionless mixer 12 having a gas inlet 14 through which chlorine gas reactant is introduced into the static mixer and a liquid inlet 16 through which the basic sodium hydroxide/hydrogen peroxide solution is introduced. As the reactants pass through static mixer 12, the gaseous products and liquid by-products are formed. The product stream passes through liquid/gas separator 26 wherein the liquid by-product stream is diverted to sump 28 and the gaseous product stream is conveyed to a low volume trap 30. The temperature of trap 30 is maintained at approximately -80.degree. C. so as to solidify and thereby remove any water or hydrogen peroxide vapor which might remain in the product stream. From the low volume trap 30, the product stream is then conveyed to chlorine trap 34 wherein any excess chlorine gas present in the system is retained.Type: GrantFiled: May 29, 1980Date of Patent: January 12, 1982Assignee: Rockwell International CorporationInventor: Ross I. Wagner
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Patent number: 4307842Abstract: A plurality of arcuate, secondary (fuel) nozzle members are juxtaposed, so that respective two of them define between them a curved, primary slit nozzle, producing a primary (oxidizer) expansion flow while the two flows mix downstream, predominantly transversely to the expansion. The nozzle members are mounted in the aperture of a plate; large-scale assemblies are described.Type: GrantFiled: October 5, 1979Date of Patent: December 29, 1981Assignee: Rockwell International CorporationInventor: Donald H. Morris
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Patent number: 4214928Abstract: A dimethyl hydantoin bonding agent is incorporated into a propellant system o as to interact with and bond various filler materials into a cured binder system.Type: GrantFiled: November 29, 1976Date of Patent: July 29, 1980Assignee: The United States of America as represented by the Secretary of the NavyInventor: John P. Consaga
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Patent number: 4168362Abstract: A ferrocenyl thiol compound is reacted with an unsaturated prepolymer to form a polymeric material suitable for use as a binder in composite propellant.Type: GrantFiled: December 14, 1977Date of Patent: September 18, 1979Assignee: The United States of America as represented by the Secretary of the NavyInventors: Carl Gotzmer, Jr., Manfred J. Cziesla
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Patent number: 4160314Abstract: A process for obtaining propellant samples from case bonded motors compri the use of electrolytic machining to remove two narrow bands of the case to expose the propellant liner, severing of the sample section from the rocket motor by means of a piano wire cutter, and removal of the propellant sample by means of a spool type piano wire cutter.Type: GrantFiled: April 28, 1978Date of Patent: July 10, 1979Assignee: The United States of America as represented by the Secretary of the NavyInventor: Levi G. Fridy
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Patent number: 4154658Abstract: The formaldehyde hydrazone of UDMH can be removed from an aqueous solution f UDMH by codistillation with a hydrocarbon or other solvent which is inert to both acidic or basis mediums. The solvent can then be recovered from the hydrazone solution by washing with an acid solution and the solvent can be reused.Type: GrantFiled: July 3, 1978Date of Patent: May 15, 1979Assignee: The United States of America as represented by the Secretary of the NavyInventor: George W. Nauflett
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Patent number: 4137849Abstract: Desensitization of explosive ordnance is effected by the incorporation of a esensitizing agent into a matrix support material to form a bomb liner. The matrix support material holds the desensitizer in place, provides a barrier between the explosive and the metal casing, and controllably releases the desensitizing agent as the temperature of the explosive ordnance nears the rapid decomposition temperature.Type: GrantFiled: October 25, 1977Date of Patent: February 6, 1979Assignee: The United States of America as represented by the Secretary of the NavyInventors: Christopher P. Hontgas, Benjamin D. Smith
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Patent number: 4126497Abstract: A double base propellant having plasticizer and ballistic modifiers unifoy dispersed therein is formed by using high speed, high shear techniques. The method of uniformly incorporating plasticizers and ballistic modifiers in a solventless process for preparing nitrocellulose is accomplished by forming a slurry of nitrocellulose under high shear, high speed mixing, adding the plasticizers and modifiers thereto and recovering the propellant.Type: GrantFiled: December 13, 1973Date of Patent: November 21, 1978Assignee: The United States of America as represented by the Secretary of the NavyInventors: Craig E. Johnson, Paul F. Dendor
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Patent number: 4124452Abstract: A process for extracting essentially pure unsymmetrical dimethyl hydrazine UDMH) from a solution containing UDMH, water, and other volatiles and non-volatiles, comprises charging a distillation stillpot with the UDMH solution, mixing into the solution sufficient caustic sodium hydroxide so as to cause the solution to separate into a two layer system, mixing isopropanol into the two layer system, and distilling off the essentially pure UDMH distillate.Type: GrantFiled: May 22, 1978Date of Patent: November 7, 1978Assignee: The United States of America as represented by the Secretary of the NavyInventor: Larry D. Henderson
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Patent number: 4104708Abstract: A self-luminescent article which comprises an opaque tubular shroud and a chemiluminescent device which comprises a light transmitting tubular body containing a chemiluminescent material, the chemiluminescent device being in telescopic relationship with the shroud and the shroud being provided with a stop means which prevents the complete removal of the chemiluminescent device from the shroud. The shroud permits the chemiluminescent device to be concealed while in operation and prevents the premature activation thereof.Type: GrantFiled: July 8, 1974Date of Patent: August 1, 1978Assignee: The United States of America as represented by the Secretary of the NavyInventor: William H. Bohli
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Patent number: 4102953Abstract: Solids loaded, extrudable, solventless, double-base propellants are formued by combining liquid plasticizers, solid binders, a high percentage of solid oxidizers, and fillers to yield propellants having high densities and capable of delivering high specific impulse.Type: GrantFiled: May 25, 1976Date of Patent: July 25, 1978Assignee: The United States of America as represented by the Secretary of the NavyInventors: Craig E. Johnson, Paul F. Dendor, Elmer R. Csanady
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Patent number: 4098627Abstract: Pyrotechnic materials containing a crosslinked polymer as a component thef are decomposed by heating to a temperature of about 50.degree. to about 160.degree. C in a liquid medium comprising an active hydrogen containing compound capable of cleaving the chemical bonds contained in said polymer. One or more components of the pyrotechnic material may be separated from the products of the decomposition and reclaimed.Type: GrantFiled: December 15, 1976Date of Patent: July 4, 1978Assignee: The United States of America as represented by the Secretary of the NavyInventors: Albert S. Tompa, David M. French, George B. Butler, Melvin S. Kaufman
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Patent number: 4087591Abstract: A high efficiency pyrotechnically activated lithium-chlorine primary cell ving a high voltage output, high energy density, and a high rate of discharge comprises a porous graphite gas diffuser, a fused alkali metal salt electrolyte, a lithium anode in contact with the electrolyte, a lithium vapor barrier, and a cartridge containing a pyrotechnic material disposed within the anode, all of the components being stacked inside a container which serves as the cell case. The lithium vapor barrier comprises a porous metal ring impregnated with lithium-chloride and is designed to prevent vaporized lithium from penetrating the barrier, contacting the chlorine cover gas and exothermically reacting.Type: GrantFiled: December 30, 1976Date of Patent: May 2, 1978Assignee: The United States of America as represented by the Secretary of the NavyInventors: Frederic M. Bowers, Judith H. Ambrus, Michael E. DeGraba
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Patent number: 4082709Abstract: Marine structures which are designed to be submerged in an aqueous environt containing fouling organism are protected fro fouling by the use of an organotin containing polymer wherein the tin is chemically bonded to the polymer. The polymer inhibits fouling of the exposed surface of the structure while minimizing the adverse effects on the surrounding environment due to reduced leaching of the organotin compound from the polymer.Type: GrantFiled: June 24, 1976Date of Patent: April 4, 1978Assignee: The United States of America as represented by the Secretary of the NavyInventors: Edward J. Dyckman, Jean A. Montemarano, Eugene C. Fischer
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Patent number: 4082583Abstract: Solventless double base propellants plasticized by metriol trinitrate thrh the addition of triethylene glycol dinitrate in a ratio of at least 1:14 triethylene glycol dinitrate to metriol trinitrate.Type: GrantFiled: January 14, 1974Date of Patent: April 4, 1978Assignee: The United States of America as represented by the Secretary of the NavyInventor: Paul R. Mosher
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Patent number: 4081251Abstract: A method for reducing the amount of sulfur present in coal which comprises rinding the coal to less than 100 microns, physically separating the fine coal rich fraction from the coarse pyrite rich coal fraction, diluting the coarse pyrite rich coal fraction with a liquid hydrocarbon carrier and then separating the high pyrite coal from the low coarse pyrite coal by passing the particles through a magnetic separator.Type: GrantFiled: October 1, 1976Date of Patent: March 28, 1978Assignee: The United States of America as represented by the Secretary of the NavyInventor: Albert J. Colli
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Patent number: 4066736Abstract: A process for preparing concentrated solutions of hydroxylammonium nitrate (HAN) or hydroxylammonium perchlorate (HAP) which comprise reacting hydroxylammonium sulfate with either barium nitrate or barium perchlorate, in such a way that the dissolved barium salt is reacted with the dissolving hydroxylammonium sulfate while agitating the system so as to keep the slurried barium salt from directly contacting the hydroxylammonium sulfate. The rate of addition of the hydroxylammonium sulfate is slower than the rate of solution of the barium salt. An excess of barium nitrate or barium perchlorate ions is needed in the solution to which the hydroxylammonium sulfate is added until the reaction is terminated. The concentration of the HAN or HAP in the final solution can be increased still further if a solution of HAN or HAP is respectively used in forming the barium salt slurry.Type: GrantFiled: March 19, 1976Date of Patent: January 3, 1978Assignee: The United States of America as represented by the Secretary of the NavyInventor: Thomas Liggett
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Patent number: D263229Type: GrantFiled: April 2, 1979Date of Patent: March 2, 1982Assignee: Rockwell International CorporationInventors: Frederick P. Nitz, Paul J. Passi, Donald R. Hodson, Donald E. Davis
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Patent number: D263230Type: GrantFiled: April 2, 1979Date of Patent: March 2, 1982Assignee: Rockwell International CorporationInventors: Frederick P. Nitz, Paul J. Passi, Donald R. Hodson, Donald E. Davis
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Patent number: D263231Type: GrantFiled: April 2, 1979Date of Patent: March 2, 1982Assignee: Rockwell International CorporationInventors: Frederick P. Nitz, Paul J. Passi, Donald R. Hodson, Donald E. Davia