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Class 149/35 - CONTAINING INORGANIC METAL AZIDE


Subclass of Class 149 - Explosive and thermic compositions or charges
Definition: Compositions wherein at least one of the explosive or thermic
No. of patents: 106
Last issue date: 07/19/2011


1      
NumberTitleIssue Date
7981225Lead free detonator and composition
A lead-free primer energetic composition including Cyanuric Triazide (60%), Tetracene (5%), Barium Nitrate (20%) and Antimony Trisulfide (15%) is produced. The lead-free primer energetic composition is used to construct a primary detonator including a transfer charg...
07/19/2011
7879166Single walled carbon nanotubes activated with hydrazoic acid
The present invention relates generally to carbon nanotubes, and more particularly to the interaction of single wall carbon nanotubes with hydrazoic acid to introduce energetic azide groups into the nanotubes to form activated carbon nanotubes. ...
02/01/2011
7833365Rare earth compound containing gas generating composition
The present invention provides a gas generating composition comprising a light rare earth compound. ...
11/16/2010
7338540Decomposition of organic azides
A method of decomposing an organic azide is provided and comprises allowing an organic azide to contact a catalytic metal halide, main group halide, mixed metal-main group halide, or mixture thereof. Organic azide fuel sources comprising an organic azide/catalyst co...
03/04/2008
7094296Gas generants containing silicone fuels
Gas generating compositions are provided containing silicone, a metal or nonmetal perchlorate oxidizer, and a coolant selected from the group including metal carbonates, metal bicarbonates, metal oxalates, and metal hydroxides. These compositions exhibit rapid and s...
08/22/2006
7056401Priming mixture for cartridge primers for small firearms
A priming mixture comprises aluminium silicate as the sensitizer, advantageously in a percentage higher than 10%, not exceeding 30% and preferably included between 15% and 25%. Combined with said sensitizer, the-mixture may further comprises a potassium compound, pr...
06/06/2006
6969944High voltage generator, especially for using as a noise frequency generator
A very compact interference frequency generator (11) which emits with an extremely wide band width and extremely powerfully is afforded by the combination of a mechanical pulse generator (25) with two piezoelectric pillars (13) which are dispose...
11/29/2005
6913661Ammonium nitrate propellants and methods for preparing the same
The present invention is directed to an age-stabilized and/or strengthened ammonium nitrate propellant composition wherein the strengthening agent is selected from the group consisting of azodicarbonamide, dicyandiamide, oxamide and mixtures thereof and wherein the ...
07/05/2005
6481746Metal hydrazine complexes for use as gas generants
Gas generating compositions and methods for their use are provided. Metal complexes are used as gas generating compositions. These complexes are comprised of a metal cation template, a neutral ligand containing hydrogen and nitrogen, and sufficient oxidiz...
11/19/2002
6149193Variable output inflator
This invention relates to a multi-stage gas bag inflator, operable initially, when activated, to cause the gas bag to deploy slowly and then, after a delay, to deploy rapidly, includes a housing having at least first and second chambers of preferably diff...
11/21/2000
6149745Gas generant composition
Provided is a gas generant composition which is improved in the self-retainability of a solid residue and has an excellent combustion speed. The gas generant composition contains a fuel comprising a metal azide or an organic compound, an oxidizing agent, ...
11/21/2000
6117254Initiator for airbag inflation gas generation via dissociation
An apparatus and method for inflating a vehicular inflatable device are provided wherein inflation gas is produced via a dissociative material wherein an initiator includes an enhanced fuel pyrotechnic formulation which, in addition to initiating dissocia...
09/12/2000
6071364Gas generating compositions containing mica
Gas generating compositions are formed from a fuel, one or more oxidizers and mica. The gas generant composition of this invention yields solid combustion products and inflating gases having a reduced content of undesirable gases such as NOx an...
06/06/2000
5898126Air bag gas generating composition
The air bag gas generating composition of this invention comprises a nitrogen-containing organic compound and at least one oxidizing agent selected from the group consisting of oxo halogen acid salts and nitrates. The invention provides an air bag gas gen...
04/27/1999
5866842Low temperature autoigniting propellant composition
A low temperature autoigniting composition for use in a mobile occupant restraint system comprising, a low temperature melting oxidizer and a fuel, wherein the low temperature autoigniting composition autoignites in the temperature range of about 130° C....
02/02/1999
5756930Process for the preparation of gas-generating compositions
A process for the production of a gas-generating composition containing a redox-couple including a water soluble azide component, for example, azide of sodium, potassium, lithium, calcium or barium, and an oxidizer component, for example, sodium nitrate, ...
05/26/1998
5741999Gas generating agent composition
This invention aims to provide a gas generating composition of a gas generator for an air bag, which composition produces less combustion residues and is easily adsorbed. This composition comprises azide of alkali metal or alkaline earth metal, metallic s...
04/21/1998
5682013Gas generant body having pressed-on burn inhibitor layer
A pyrotechnic grain or body of a gas generant having a consolidated or pressed-on, particulate inert burn inhibitor layer thereon. The inhibitor may be a metal oxide, metal sulfide, silica, silicate compound or mixtures thereof. The metal oxide is prefera...
10/28/1997
5610367Non-toxic rim-fire primer
A lead-free rim-fire primer mix which utilizes cupric azide, a highly sensitive chemical, as the primary explosive in lieu of lead styphnate. The cupric azide is mixed with carefully selected proportions of nitrocellulose, tetracene, fine particles of gro...
03/11/1997
5589662Pyrotechnic mixture and gas generator for an airbag
A pyrotechnic mixture in the form of granulates, encompassing a nitrogen-generating substance, an inorganic oxidizing medium and a binder constituted of silicone rubber. Also disclosed is a process for the production of this pyrotechnic mixture, as well a...
12/31/1996
5563367Process for manufacturing a gas generator composition
The gas generator composition contains sodium azide and an oxidizing agent as major components. This gas generator composition additionally contains 2 to 8% by weight of magnesium aluminate. To produce this composition, sodium azide and the oxidizing agen...
10/08/1996
5557061High temperature stable, low input energy primer/detonator
A method for the manufacture of primers/detonators with 90-99.99% reliability and achieving sensitivity of 0.8 inch-oz to 3.0 inch-oz, able to withstand temperatures within the range of 40° C. to 200° C. and able to withstand temperature cycling and hum...
09/17/1996
5552001Oxygen yielding firestarter/firebuilder
The invention disclosed herein is an explicit procedure for initiating a charcoal fire and afterward building the fire, including a plan for effective support of the fire by air after the fire has been built. Arrangements to direct the afterward flow of a...
09/03/1996
5542997Gas-generating mixture
A gas-generating mixture for an air bag, which has a rate of burnoff exceeding 40 mm/sec and good ignitability, but leads to a relatively low combustion temperature. The mixture is formed of an alkali or alkaline earth azide as the principal component, a ...
08/06/1996
5536340Gas generating composition for automobile airbags
A nitrogen gas-generating composition for use in airbags is prepared from an alkali metal azide and a heavy metal sulfide. The gas-generation is initiated by ignition of the composition and results in low residues of solid particulate material....
07/16/1996
5527405Pyrotechnic mixture and gas generator for an airbag
A pyrotechnic mixture in the form of granulates, encompassing a nitrogen-generating substance, an inorganic oxidizing medium and a binder constituted of silicone rubber. Also disclosed is a process for the production of this pyrotechnic mixture, as well a...
06/18/1996
5518054Processing aids for gas generants
In a gas generant composition for automotive airbag inflation, a gas generant composition comprises a fuel and an oxidizer the composition includes a metal oxide or metalloid oxide and a processing aid which is a mixture of mica and a salt of a fatty acid...
05/21/1996
5507890Multiple layered gas generating disk for use in gas generators
The present invention resides in a body of material which is ignitable to generate a gas for inflating an air bag. The body of material comprises at least two layers of ignitable gas generating material which are pressed together. One of the layers compri...
04/16/1996
5495807Gas-generating module for an airbag utilized in motor vehicles
A gas-generating module for an airbag utilized in motor vehicles, which includes a gas-generating composition and an igniting composition arranged within a container. The gas-generating composition is presently in the shape of a foil-like layer or coating...
03/05/1996
5489349Grains of gas generating material and process for forming the grains
A process for forming a grain (10) of gas generating material includes the step of forming pieces (86) of gas generating material, and further includes the step of forming the grain (10) as a compacted agglomeration of the pieces (86) of gas generating ma...
02/06/1996
5487798High velocity gun propellant
A propellant composition comprising an admixture of a first hydrogen rich material and a second metal material which is capable of reacting exothermically with the first material. The ratio of the first material to the second material is selected such tha...
01/30/1996
5470406Gas generator composition and process for manufacturing the same
The gas generator composition contains sodium azide and an oxidizing agent as major components. This gas generator composition additionally contains 2 to 8% by weight of magnesium aluminate. To produce this composition, sodium azide and the oxidizing agen...
11/28/1995
5464248Alkali metal azide particles
Alkali metal azide particles most of which have a nearly spherical shape and take a spongy structure and whose volume average particle size ratio in the ultrasonic dispersion treatment is desirously 0.4 or less. Since self-decomposition characteristics of...
11/07/1995
5462306Gas generator for vehicle occupant restraint
The present invention resides in a vehicle occupant restraint assembly (12). The assembly comprises a vehicle occupant restraint (20), a housing (14), a gas generating composition (16) within the housing, an igniter (18) for igniting the gas generating co...
10/31/1995
5437229Enhanced thermal and ignition stability azide gas generant intermediates
Slurry and spray dried azide-based gas generant intermediates are made having a hydrazoic acid content of less than about 3×10 EXP(-3) M/L, a pH of greater than 8.0 up to about 12.5, and impurity metal ions Ca, Mg, Pb, Fe, Mn and Cu, each below about 25 ...
08/01/1995
5433932Process to recover azide values from azide-based gas generating materials
In a process for recovering an alkali metal azide from a waste gas generating material containing the alkali metal azide and a metal oxide reactable with the azide, the gas generating material is mixed with a solvent for the alkali metal azide. This produ...
07/18/1995
5407608Process of manufacturing a gas generating material
A process for manufacturing a gas generating material includes preparing a hot solution of a metal azide, preferably sodium azide, with metal oxide particles, preferably iron oxide particles, suspended in the solution. The metal azide is precipitated from...
04/18/1995
5387296Additive approach to ballistic and slag melting point control of azide-based gas generant compositions
Gas generant pyrotechnic compositions especially suitable for inflating vehicle occupant restraint systems with nitrogen gas are described. The compositions are comprised (in wt. %) of about 65-74% of an azide, preferably sodium azide; about 17-29.5% of i...
02/07/1995
5382050Gas generator for vehicle occupant restraint
A vehicle occupant restraint assembly (12) has an inflatable vehicle occupant restraint (20), a housing (14), a gas generating material (16) within the housing, an igniter (18) for igniting the gas generating material, and gas flow channel (22) for direct...
01/17/1995
5324075Gas generator for vehicle occupant restraint
A vehicle occupant restraint assembly comprises a vehicle occupant restraint (20), a housing (14), gas generating material (16) within the housing, an igniter (18) for the gas generating material, and gas flow means (22) for directing gas from the housing...
06/28/1994
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