摘要:
Fire suppressant compositions which are substantially free of ammonium nitrate and which comprise potassium nitrate in an amount sufficient to generate at least about 10 wt. % potassium carbonate when combusted. Most preferably, a guanidine salt, such as guanidine nitrate, is used in combination with the potassium nitrate. The compositions employed in the present invention have low pressure exponents, high burning rates and low flame temperatures.
摘要:
A family of Class 1.3 propellant compositions comprising nitrocellulose, at least one of a selected group of plasticizing nitrate esters, a thermal stabilizer, carbon and an energetic solid, and a method of making the family of propellant compositions is provided.
摘要:
A fire suppressant composition is provided which exhibits a low pressure and low flame temperature. The composition comprises ammonium nitrate and a guanidine salt or derivative which produces greater than 3 moles of inert gas per 100 grams of composition and alkali metal or alkaline earth salts for flame suppression. The composition may also include iron or iron oxide.
摘要:
Liquid monopropellants for passive vehicle restraint systems (e.g., air bags) include an aqueous solution of a water-soluble oxidizer and a water-soluble organic fuel miscible with the oxidizer. The oxidizer is most preferably ammonium nitrate, hydrogen peroxide or nitric acid, while the fuel is a lower alcohol such as methanol, ethanol, propanol or glycerol. The liquid monopropellants will advantageously have an oxidation ratio (OR) of greater than about 0.90.
摘要:
Particulate-free non-toxic gases are generated in a hybrid generator device by conducting the ignition of the propellant with an effective oxidizer, using a mixture of a molecular oxygen-containing gas and argon by varying the ratio of said gas to argon to provide only non-toxic reaction products in the exhaust gas.
摘要:
Solid gas generant compositions produce low particulates (e.g., condensed ash) when ignited. The solid gas generant compositions most preferably include a nitramine, at least one oxidizer selected from nitrates of strontium or cerium, in admixture with or without potassium perchlorate, and a binder. Graphite may optionally be employed. The gas generant compositions are usefully employed in inflatable vehicle occupant passive restraint systems (e.g., air bag systems).
摘要:
An improved thermally stable, storage stable gas generating composition characterized by both an increased burning rate and a decreased pressure exponent for producing a clean, nontoxic, substantially ash- and solids-free gas for inflating inflatable structures such as vehicle airbags is provided. Optimum combustion efficiencies and operating pressures are achieved in the improved gas generating composition by adding an effective amount of a copper or copper compound catalyst to a gas generating composition that is preferably a eutectic mixture or solid solution of ammonium nitrate, at least one highly oxygenated fuel, potassium or cesium perchlorate or nitrate and an optional binder.
摘要:
An improved thermally stable, storage stable gas generating composition characterized by both an increased burning rate and a decreased pressure exponent for producing a clean, nontoxic, substantially ash- and solids-free gas for inflating inflatable structures such as vehicle airbags is provided. Optimum combustion efficiencies and operating pressures are achieved in the improved gas generating composition by adding an effective amount of a copper or copper compound catalyst to a gas generating composition that is preferably a eutectic mixture or solid solution of ammonium nitrate, at least one highly oxygenated fuel, potassium or cesium perchlorate or nitrate and an optional binder.
摘要:
A solid combustible composition for use in solid fuel air-augmented rocket engines which very substantially increases the temperature efficiency of afterburner fuel combustion with ram air, thereby greatly increasing engine performance. The improvement comprises dispersing in a matrix comprising the solid, fuel-rich organic compositions conventionally utilized in air-augmented rockets, particles containing solid oxidizable element and fluorine oxidizer compound which reacts with the element to produce gaseous subfluoride compound.
摘要:
A rigid animal tether assembly comprises a rigid outwardly extending tie section and a rigid, hollow inwardly extending tilt section. The tie section includes tie elements for tethering an animal at a distal end section thereof and being connected at an opposing coupling end section thereof to an open outer end of the tilt section. A base structure includes base surface configuration that contiguously mates with an open inner end of the rigid tilt section. The coupling end section of the rigid tie section includes a biasing member for connecting the coupling end section inside the tilt section for drawing the rigid tie section and rigid, hollow tilt section under tension in a direction towards the base surface configuration. The biasing member is effective to continuously urge the base surface configuration against the open inner end of the tilt section with an amount of force sufficient to project the rigid tie section coupled to the outer end of the tilt section in a direction outwardly from the base surface.