U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 149/43 - Inorganic nitrogen-oxygen salt


Subclass of Class 149 - Explosive and thermic compositions or charges
Definition: Compositions which contain an inorganic salt having nitrogen
No. of patents: 120
Last issue date: 02/14/2006


1      
NumberTitleIssue Date
6997998Lead-and barium-free propellant charges
The subject of the present invention is lead- and barium-free propellant charges with primary explosives mixed with oxygen-supplying substances, characterized in that the primary explosives are selected from alkali metal and/or alkaline earth metal salts of dinitrob...
02/14/2006
6972059Exothermic feeder
An exothermal feeder mass is described, containing aluminum and magnesium, at least one oxidizing agent, a SiO2-containing filler, and an alkali silicate as the binder; it is characterized in that it contains roughly 2.5 to 20% by weight of a reactive alu...
12/06/2005
6848366Binary exploding target, package process and product
A binary exploding target package, a process of forming an exploding target from the contents of the binary exploding target package, and the exploding target formed therefrom. The binary exploding target package includes a first, target container and a second conta...
02/01/2005
6749702Low temperature autoignition composition
The present invention relates to a low temperature autoignition composition for safely initiating combustion of a main pyrotechnic charge in a gas generator or pyrotechnic device exposed to flame or a high temperature environment. The low temperature autoignition co...
06/15/2004
6617064Stabilized aluminum hydride polymorphs
The present invention features methods for preparing stabilized ଱-AlH3 and ଱'-AlH3, compositions containing these alane polymorphs, e.g., energetic compositions such as rocket propellants, and methods for using the novel ...
09/09/2003
6544363Non-toxic, heavy-metal-free shotshell primer mix
A non-toxic heavy-metal-free priming mix and a method of forming same, designed especially for industrial shotshells and other shotshells having abnormally heavy charges of propellant in an effort to qualify for heavy duty assignments such as the need to ...
04/08/2003
6487974Inflator
An ignition enhancer and gas heater composition for vehicle occupant restraint systems (commonly known as "airbags") contains a non-azide fuel, an oxidizer and a metal. The ignition enhancer composition provides reliable and consistent ignition of a main ...
12/03/2002
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
6478903Non-toxic primer mix
A non-toxic primer mix including both bismuth sulfide and potassium nitrate as the pyrotechnic portion of the primer is disclosed. In a further embodiment, a non-toxic primer mix comprising zinc sulfide and aluminum nitrate as the pyrotechnic portion of t...
11/12/2002
6221187Method of safely initiating combustion of a gas generant composition using an autoignition composition
The present invention relates to a low temperature autoignition composition for safely initiating combustion of a main pyrotechnic charge in a gas generator or pyrotechnic device exposed to flame or a high temperature environment. The low temperature auto...
04/24/2001
6214138Ignition enhancer composition for an airbag inflator
An ignition enhancer and gas heater composition for vehicle occupant restraint systems (commonly known as "airbags") contains a non-azide fuel, an oxidizer and a metal. The ignition enhancer composition provides reliable and consistent ignition of a main ...
04/10/2001
6200398Emulsion explosive compositions
Water in oil emulsion explosive compositions comprises a discontinuous aqueous phase comprising at least one oxygen-supplying component, a continuous organic phase, an emulsifying amount of an emulsifier composition comprising: the reaction product of an ...
03/13/2001
6136224Gas generant
A gas generant for an air, which is improved in the defects of gas generants using sodium azide in a practical use and has stable combustion capability. And a molecular compound comprising (a) a gas generant component, (b) an oxidant component and (c) a r...
10/24/2000
6086693Low particulate igniter composition for a gas generant
Igniter compositions and methods of processing are provided which produce or result in relatively little particulate material, as compared to typical igniter compositions used in association with vehicle occupant restraint airbag cushions....
07/11/2000
6073962Gas generant
The present invention is directed to an airbag system that includes a gas generant, which is improved in the defects of gas generants using sodium azide in a practical use and has stable combustion capability. A molecular compound comprising (a) a gas gen...
06/13/2000
5962808Gas generant complex oxidizers
Nonazide gas generant compositions, useful for inflating passenger restraint gas inflator bags, comprise a multimetallic coordination complex oxidizer selected from coordination complexes comprised of anionic nitro and nitrito ligands coordinated with a t...
10/05/1999
5936195Gas generating composition with exploded aluminum powder
A gas generating composition, particularly for inflating devices such as air bag inflators, includes an effective amount of an exploded aluminum powder to both increase the burning rate and lower the composition's pressure exponent....
08/10/1999
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
5472536Tracer mixture for use with laser hardened optics
A pyrotechnic mixture for use in tracer rounds of projectiles to increase sibility under high speed conditions when viewed through laser hardened optics, comprising, in percentages by weight, an admixture of 20% to 40% magnesium, 10% to 30% strontium nitr...
12/05/1995
5167736Nontoxic priming mix
A nontoxic primer mix for use in a percussive primer, especially of the Boxer type which principally comprises diazodinitrophenol and boron. The composition may also contain calcium carbonate or strontium nitrate as an oxidizer, a nitrate ester as a fuel,...
12/01/1992
5145535Method for intermolecular explosive with viscosity modifier
A method for improving the disperion of particulate materials in intermollar explosive compositions which comprises dry blending at least one fuel compound and at least one oxidizer compound, a viscosity modifier and a dispersable particulate material, m...
09/08/1992
5129972Emulsifiers and explosive emulsions containing same
Emulsifiers are disclosed which comprise the reaction product of component (I) with component (II). Component (I) comprises the reaction product of certain carboxylic acids or anhydrides, or ester or amide derivatives thereof, with ammonia, at least one a...
07/14/1992
5074938Low pressure exponent propellants containing boron
Propellant grain consisting essentially of: A. from about 50% to about 75% by weight of an oxidizer consisting essentially of ammonium nitrate; B. from about 1% to about 20% by weight of a cured polymeric binder; C. from 0% to about 30% by weight of a nitrate ester...
12/24/1991
5071496Low level blasting composition
A blasting agent is disclosed for use in a borehole having a pressure resistant closure. The blasting agent is used in combination with a primary initiating system comprised of a detonator and an initiator for the detonator. The blasting agent is preferab...
12/10/1991
5034073Insensitive high explosive
An explosive composition having a combination of a principal explosive, which is relatively insensitive to initiation of detonation, two mesh fractions of a sensitizing explosive which is relatively sensitive to initiation of detonation, a critical diamet...
07/23/1991
5034070Gas generating material
A gas generating grain has a water-based particulate booster coating thereon. The coating comprises an alkali metal azide, a water-soluble inorganic oxidizer in approximately a stoichiometric proportion of oxidizer to azide, and a nucleating amount of a s...
07/23/1991
4979999Tracer composition and method of producing same
A tracer composition with a relatively high luminous output and a moderate burn rate includes from 35 to 47% by weight magnesium; from 40 to 53% by weight strontium nitrate, from 2 to 10% by weight magnesium carbonate, from 0 to 6% by weight color intensi...
12/25/1990
4968365Pyrotechnical mixture for producing a smoke screen
A pyrotechnic mixture for producing a smoke screen includes a reduction agent comprising a light metal, at least one oxidation agent comprising potassium nitrate, combustion moderators including at least one carbonate and a nitrogen producing compound and...
11/06/1990
4908079Water in oil type emulsion explosive
An excellent water in oil type emulsion explosive having both of a superior handling property and a good aging initiating sensitivity at low temperatures and at small calibers, is provided by using a specific low molecular weight polyethylene as the carbo...
03/13/1990
4875948Combustible delay barriers
A combustible delay barrier for providing a delay to intrusion into an object. The delay barrier comprises a combustible layer containing a source of fuel such as a metal and/or a polymer and a source of oxygen such as an oxidizer. The combustible layer o...
10/24/1989
4875950Explosive composition
This invention relates to a dry mix explosive composition which includes a bulking agent which comprises from 1-20% (by weight) of a vegetable protein additive, the bulking agent having a bulk density of 0.1-0.6 grams per cubic centimeter. It is preferred...
10/24/1989
4865667Gas-generating composition
A nitrogen-generating composition useful for inflating air bags to protection for occupants of motor vehicles is disclosed which is composed of a stable nitride resistant to high temperatures and an inorganic oxidizing agent....
09/12/1989
4824495Combustible coatings as protective delay barriers
A combustible coating for providing a delay barrier to intrusion into an object. The coating contains a source of fuel as a metal and/or a polymer and a source of oxygen such as an oxidizer. The coating is ignitable at a temperature in excess of about 300...
04/25/1989
4820362Metal diffusion and composition
Low alloy steel tubes are decarburized, heavily diffusion chromized and heavily diffusion aluminized to protect them against sulfidation. For the diffusion they can be supported upright with one end on layer of diffusion-coating pack on floor of a retort....
04/11/1989
4764229Sensitization of inorganic oxidizer explosives
Sensitized inorganic nitrate mixtures with high brisance are provided in which oxygen balance is attained by the incorporation of aluminum dust and hydrocarbons. Cap sensitivity is achieved by adding an organic nitrate. The resultant mixtures have a low t...
08/16/1988
4747892Melt-castable explosive composition
A melt castable explosive composition not based on TNT is disclosed which consists essentially of about 10 to 20 weight percent of a matrix material having a melting temperature of about 60° to 100° C., up to about 0.5 weight percent of an emulsifying a...
05/31/1988
4743512Method of manufacturing flat forms from metal powder and product formed therefrom
A method of manufacturing a flat form from blended metallic powder including a major constituent by weight having a high melting point and a minor constituent by weiht having a substantially lower melting point includes selection of the powder to provide ...
05/10/1988
4719856Pyrotechnic device
The pyrotechnic device comprises a projectile, a ground mounted device or a floating device whose casing contains a charge of titanium or other suitable combustible metal-containing material, charcoal, or other reducing agent and gunpowder such that, foll...
01/19/1988
4719857Pyrotechnic device
The pyrotechnic device comprises a projectile, a ground mounted device or a floating device whose casing contains a charge of particulate material, for example a combustible silicon-containing material in particular mixed with titanium or other suitable c...
01/19/1988
4708753Water-in-oil emulsions
A water-in-oil emulsion is disclosed which comprises: (A) a continuous oil phase; (B) a discontinuous aqueous phase; (C) a minor emulsifying amount of at least one salt derived from (C)(I) at least one hydrocarbyl-substituted carboxylic acid or anhydride, or ester ...
11/24/1987
1      
 
Sign InRegister
Username  
Password   
forgot password?