With Carbon Or Sulfur Patents (Class 149/71)
-
Patent number: 8980023Abstract: A gas generating pyrotechnic composition that in addition to a primary fuel component and a primary oxidizer component includes critical relative amounts of elemental carbon and cupric oxide. Also provided are associated methods for producing an inflation gas for an occupant restraint system of a motor vehicle.Type: GrantFiled: July 27, 2011Date of Patent: March 17, 2015Assignee: Autoliv ASP, Inc.Inventor: Gary K. Lund
-
Publication number: 20130025749Abstract: A gas generating pyrotechnic composition that in addition to a primary fuel component and a primary oxidizer component includes critical relative amounts of elemental carbon and cupric oxide. Also provided are associated methods for producing an inflation gas for an occupant restraint system of a motor vehicle.Type: ApplicationFiled: July 27, 2011Publication date: January 31, 2013Applicant: Autoliv ASP, Inc.Inventor: Gary K. LUND
-
Patent number: 4768439Abstract: An illuminating non-metallic pyrotechnic composition is disclosed which consists essentially of, expressed in absolute weight units: (a) from about 51 to 61 parts of strontium nitrate, (b) from about 15 to 25 parts of potassium perchlorate, (c) from about 15 to 25 parts of sulfur, (d) about 3 parts of sodium nitrate, and (e) about 2 parts of uintaite. Optimum flare luminosity is achieved when the composition is essentially free of other fuel constituents, such as dextrin, nitrocellulose charcoal. A flare is disclosed comprising the disclosed pyrotechnic composition.Type: GrantFiled: October 23, 1987Date of Patent: September 6, 1988Inventors: Stewart M. Singer, Stanley Fitzgerald
-
Patent number: 4543137Abstract: A gas-retaining agent consisting of bubble assemblies, each bubble assembly being one particle consisting of a large number of bubbles agglomerated into the particle, is effective for improving the safety of water-in-oil emulsion explosive compositions against methane and coal dust, for improving the sympathetic detonability of the explosive compositions and for lowering their detonation velocity without deteriorating their strength.Type: GrantFiled: October 2, 1984Date of Patent: September 24, 1985Assignee: Nippon Oil and Fats Co. Ltd.Inventors: Koji Edamura, Akio Torii, Kazuyuki Sato, Hiroshi Sakai
-
Patent number: 4528049Abstract: A dry explosive seismic composition which can be initiated by low grain detonating cord so as to minimize the fire hazards typically associated with seismic testing. Preferred compositions within the scope of the present invention include a sensitizer of Hexamine or a derivative thereof, such as Hexamethylenetetramine Mononitrate. The compositions of the present invention not only reduce the fire hazards associated with using such compositions, but they also resist vaporization of the sensitizer, thereby minimizing the problems associated with handling the compositions.Type: GrantFiled: July 9, 1984Date of Patent: July 9, 1985Inventors: Lex L. Udy, John T. Day
-
Patent number: 4509998Abstract: An explosive oil-in-water emulsion and a method of manufacture is disclosed. The process comprises combining a liquid carbonaceous fuel and an aqueous solution of at least one inorganic oxidizing salt, with agitation, in the presence of ingredients A and B, ingredient A being selected from the group consisting of oleic acid, linoleic acid and mixtures thereof, and ingredient B being selected from the group consisting of C.sub.1 -C.sub.6 alkylamines, C.sub.1 -C.sub.6 alkyldiamines, hydrazine, C.sub.2 -C.sub.6 alkanolamines, urea and mixtures thereof, incorporating dispersed gas bubbles into the resulting water-in-oil emulsion, one of said ingredients A and B being added before or during agitation and the remaining ingredient of ingredients A or B being added during agitation.Type: GrantFiled: December 27, 1983Date of Patent: April 9, 1985Assignee: Du Pont Canada Inc.Inventor: Ernest A. Hajto
-
Patent number: 4507161Abstract: This invention concerns a dynamite type explosive composition which comprises at least one liquid explosive nitric ester and an emulsion composition comprising an oxygen-releasing salt phase, an organic phase and an emulsifier. The invention provides dynamite type compositions in which the amount of liquid explosive nitric ester can be significantly reduced without adversely affecting the performance and physical properties of the composition.Type: GrantFiled: February 2, 1984Date of Patent: March 26, 1985Assignee: ICI Australia LimitedInventors: Vladimir Sujansky, Sergio Tribuzio, Jolanta Paull
-
Patent number: 4500370Abstract: A method for making a water-in-oil emulsion type explosive composition is disclosed. The method comprises combining a liquid carbonaceous fuel and an aqueous solution of at least one inorganic oxidizing salt, with agitation, in the presence of ingredients A and B and incorporating dispersed gas bubbles into the resulting emulsion. One of the ingredients A or B is added before or during agitation and the remaining ingredient is added during agitation. Ingredient A is oleic acid and/or linoleic acid. Ingredient B is an ammonium or alkali metal phosphate or carbonate.Type: GrantFiled: December 27, 1983Date of Patent: February 19, 1985Assignee: Du Pont Canada Inc.Inventor: Ernest A. Hajto
-
Patent number: 4448619Abstract: This invention concerns a water-in-oil emulsion explosive composition which comprises a discontinuous aqueous phase containing one or more oxygen-releasing salts, a continuous water-immiscible organic phase comprising sump oil, and an emulsifying agent. The explosive compositions show improved sensitivity over conventional compositions made using paraffin oil as the organic phase.Type: GrantFiled: May 25, 1983Date of Patent: May 15, 1984Assignee: ICI Australia LimitedInventor: Kenneth A. W. Mitchell
-
Patent number: 4428784Abstract: The present invention relates to improved blasting agents. More particularly, the invention relates to a water-in-oil emulsion blasting agent containing sodium nitrate (SN) in an amount of from about 40% to about 70% by weight of the total composition. The water-in-oil emulsion blasting agents of this invention have a water-immiscible liquid organic fuel as a continuous phase; an emulsified aqueous inorganic oxidizer salt solution as a discontinuous phase; particulate inorganic oxidizer salt; an emulsifier; and optionally a density reducing agent. Preferably the blasting agents contain from about 10% to about 40% ammonium nitrate (AN) in addition to SN.Type: GrantFiled: March 7, 1983Date of Patent: January 31, 1984Assignee: IRECO ChemicalsInventors: Harvey A. Jessop, Albert G. Funk
-
Patent number: 4362584Abstract: This invention relates to propellants and in particular to a method for safely forming a binary propellant.More specifically, this invention relates to a method for safely forming a Binary Propellant useful as a propellant replacement for Black Powder.Type: GrantFiled: September 3, 1980Date of Patent: December 7, 1982Assignee: Pyrodex CorporationInventor: Michael K. Levenson
-
Patent number: 4341573Abstract: Pyrotechnic compositions in which sulfur is utilized to regulate or control the ignition or detonation of potassium nitrate and aluminum in compositions which may be used as emergency, signal or display type flares and which are characterized by exhibiting a predetermined or timed pulsating illuminary effect.Type: GrantFiled: September 5, 1980Date of Patent: July 27, 1982Assignee: Pulsar Laboratories, Inc.Inventor: David W. Donoho
-
Patent number: 4233094Abstract: An explosive composition wherein no water is added and no water is formed as a reaction product during detonation. The composition is oxygen balanced and contains no hydrogen.Type: GrantFiled: January 15, 1979Date of Patent: November 11, 1980Inventor: Calvin J. Konya
-
Patent number: 4216040Abstract: The invention relates to water-in-oil emulsion blasting agents having a discontinuous aqueous phase, a continuous oil or water-immiscible liquid organic phase, and an emulsifier having an unsaturated hydrocarbon chain for its lipophilic portion.Type: GrantFiled: January 19, 1979Date of Patent: August 5, 1980Assignee: IRECO ChemicalsInventors: Walter B. Sudweeks, Harvey A. Jessop
-
Patent number: 4203787Abstract: Mixtures of alkali metal azides, metal and metalloid oxides, molybdenum disulfide and optionally sulfur are easily pressed into pellets, are rapid, stable and cool burners and give high purity cool nitrogen gas. The compositions are useful in applications such as automotive crash bag inflators and the like.Type: GrantFiled: December 18, 1978Date of Patent: May 20, 1980Assignee: Thiokol CorporationInventors: George F. Kirchoff, Fred E. Schneiter
-
Patent number: 4128443Abstract: Gas-forming deflagrating compositions which produce relatively low peak pressures and impart high velocity to projectiles are formed by incorporation of from about 1 to about 25 percent of water in an oxidizer-fuel mixture.Type: GrantFiled: July 24, 1975Date of Patent: December 5, 1978Inventors: Daniel E. Pawlak, Michael Levenson
-
Patent number: 4039361Abstract: This invention describes a method of preparation of sensitized dry blasting agents comprising a mixture of granular/powder ammonium nitrate with or without Sodium Nitrate, Potassium Nitrate, Calcium Nitrate, etc. fuel(s), and at least one sensitizer. The aid sensitizer is selected from the group comprising nitrate, chlorate, perchlorate and an organic derivative of a metal, which can exhibit variable valency and whose oxides and hydroxides are weakly basic in nature, e.g., iron, cobalt, nickel, chromium, copper, lead, etc.Unlike the dry blasting agents known in prior art, the sensitized dry blasting agents can be detonated in small diameter boreholes with a generally available low strength detonator or specially made powerful detonator.Type: GrantFiled: December 16, 1975Date of Patent: August 2, 1977Assignee: Indian Explosives Limited of I.C.I. HouseInventors: Bhairab Nath Ray, Dhirendra Nath Bhattacharyya
-
Patent number: 3951705Abstract: A blue-burning pyrotechnic tracer mix which provides a smoke trail even ar the blue flame is no longer visible to thus extend the visible range of the projectile in which the mixture is employed, the pyrotechnic mixture comprising by weight percent: 6-10% potassium perchlorate, 11-18% magnesium, 10-20% cupric chloride anhydrous, 35-45% barium nitrate, 12-18% hexachlorobenzene, 5-10% sulfur.Type: GrantFiled: May 14, 1975Date of Patent: April 20, 1976Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Dennis J. Mancinelli, Walter J. Puchalski