Abstract: A metal holder, and a method of producing the same, with electrode pins suitably used for a gas generator having a structure that can prevent electrode pins from being burst forth easily even when the gas generator is brought into action under high temperature. The metal holder with electrode pins includes a metal holder and at least two electrode pins for allowing passage of electrical current. Each electrode pin is larger in diameter at its head portion than at its terminal portion. Plastic members are arranged to surround a part of the respective electrode pins circumferentially. Holes for the respective electrode pins to pass through the holder are formed in the holder, and the electrode pins are fixed to the holes via the plastic members, each hole having a diameter-reduction portion at a part thereof.

Abstract: Disclosed is a heat-treated oxidizing agent for gas generating compositions which is obtained by mixing ammonium nitrate with an inorganic compound having as an element one or two or more metal atoms selected from the group consisting of Cu, Fe, Ni, Zn, Co, Mn and Ti and subjecting the mixture to heat treatment, and a gas generating composition containing the same. This invention provides a gas generating composition comprising ammonium nitrate, which can be safely produced, does not change in density with phase transition, and has sufficient combustibility.

Abstract: A gas generator comprising a cup member 3 loading therein with gas generant 2 to generate gas by burning, at least two electrode pins 4 to permit passage of electricity, an ignition portion 20 having an ignition mechanism to ignite by an application of electric current, and a holder 5 to fix the electrode pins 4 and the ignition portion 20 in place and engage with the cup member 3 to seal off the gas generant 2, wherein holes 23 for the electrode pins 4 to be extended through are formed in the holder 5 and plastic members 6 are arranged around a part of a radial periphery of the respective electrode pins 4, and wherein a part of or a whole of the plastic members 6 are inserted in the holes 23 and the holder 5 is plastically deformed at a portion thereof at which the plastic members 6 are inserted, whereby the electrode pins 4 and the plastic members 6 are fixed.

Abstract: The present invention provides a gas generant composition comprising a nitrogen-containing organic compound, an oxidizing agent and an additive, wherein a calorific value per mol of gas generated by the combustion of the gas generant is not more than 125 KJ. Also, the present invention provides a gas generator using the said gas generant composition of the present invention. In the gas generant composition that burns at a suitable combustion speed for the gas generator, a calorific value per mol of gas generated by the combustion of the gas generant is suppressed to a specific value as noted above, whereby reduction in size and weight of the gas generator is achieved.

Abstract: A gas generator including, at least, a cup member containing a gas generant that burns to generate gas, and a holder provided with an ignition device that has at least one conductive pin and ignites the gas generant. The holder is provided with one or more through holes through which the conductive pins pass and one or more non-through holes through which the conductive pins do not pass. And, with respect to a rupture pressure from a gas generant side to the holder, when a pressure occurs toward an outside of the gas generator, the rupture pressure of the through hole through which the conductive pin passes is adjusted to be higher than the rupture pressure of the non-through hole through which the conductive pin does not pass.

Abstract: A gas generating composition which contains a nitrogenous organic compound as a fuel component and generates, at a high gasification rate, a clean gas harmless to the human body. The composition of the present invention comprises a nitrogenous organic compound as a fuel component and ammonium perchlorate and the nitrate of an alkaline metal or alkaline earth metal as oxidizing agents, wherein where a quantity of nitrate required solely for forming an oxide of alkaline metal or alkaline earth metal that can stoichiometrically neutralize hydrogen chloride generated from ammonium perchlorate is taken as 1, a quantity of nitrate of said alkaline metal or alkaline earth metal exceeds 0.9.

Abstract: A gas generator (G) comprising a hollow body (3) packed with gas generant (2) for generating gas by burning, and a holder (5) disposed in an inside of the hollow body (3) and equipped with an igniter device (1). A stepped portion (12) is formed in the hollow body (3), and the holder (3) comprises a holder body (16) and a weldable member (6) partly exposed to an outer circumferential portion of the holder and is formed to fit against the stepped portion (12). The weldable member (6) and the hollow body (3) are welded to seal an interior of the hollow body (3).

Abstract: A gas generator for actuating a vehicle occupant restraint device, including a first hollow body with a bottom and sides, gas generants filled densely in the first hollow body, an electric ignitor formed by housing igniting agents in a second hollow body with a bottom and sides, and closing the second hollow body with a plug, and a holder positioning the second hollow body in a center of the first hollow body and fixing the first hollow body while holding the plug of the electric ignitor. Particularly, a ratio of an empty space to a full volume of a space partitioned by an inner surface of the first hollow body, an outer surface of the second hollow body, and the holder is less than 20% by volume.

Abstract: Disclosed is a heat-treated oxidizing agent for gas generating compositions which is obtained by mixing ammonium nitrate with an inorganic compound having as an element one or two or more metal atoms selected from the group consisting of Cu, Fe, Ni, Zn, Co, Mn and Ti and subjecting the mixture to heat treatment, and a gas generating composition containing the same. This invention provides a gas generating composition comprising ammonium nitrate, which can be safely produced, does not change in density with phase transition, and has sufficient combustibility.

Abstract: A gas generator comprising two or three or more chambers partitioned by two or three or more partition plates, gas generants filled in at least one of the chambers, and gas flow rate regulating means comprising a plurality of holes formed in each of the partition plates, wherein there are provided two or three or more gas flow rate regulating means located on a pathway through which gas generated from the gas generants is discharged from a combustion chamber to an outside of the gas generator, and wherein a second smallest opening area B of each of the gas flow rate regulating means is determined by the relation with A, where “A” is the smallest opening area of the gas flow rate regulating means.

Abstract: A gas generating composition which contains a nitrogenous organic compound as a fuel component and generates, at a high gasification rate, a clean gas harmless to the human body. The composition of the present invention comprises a nitrogenous organic compound as a fuel component and ammonium perchlorate and the nitrate of an alkaline metal or alkaline earth metal as oxidizing agents, wherein where a quantity of nitrate required solely for forming an oxide of alkaline metal or alkaline earth metal that can stoichiometrically neutralize hydrogen chloride generated from ammonium perchlorate is taken as 1, a quantity of nitrate of said alkaline metal or alkaline earth metal exceeds 0.9.

Abstract: The present invention provides a gas generant composition comprising a nitrogen-containing organic compound, an oxidizing agent and an additive, wherein a calorific value per mol of gas generated by the combustion of the gas generant is not more than 125KJ. Also, the present invention provides a gas generator using the said gas generant composition of the present invention.

Abstract: An automatically ignitable enhancer agent composition comprising: (a) 5-aminotetrazole, (b) a metal powder, (c) at least one compound selected from the group consisting of potassium nitrate, sodium nitrate and strontium nitrate, and (d) molybdenum trioxide, and having a heating value of 4500 J/g or more. Further, the above composition which has an ability to generate gases in an amount of 0.5 mol to 2.0 mol per 100 g of the composition is also disclosed.

Abstract: A gas generator includes a first cup 10 packed with gas generating agent 14 that generates gas by burning; a second cup E disposed in an inside of the first cup 10 and containing ignition agent; and a holder 9 holding the first cup 10 thereon and also holding a plug B of the second cup E or the second cup thereon. In the gas generator, there is provided a separator 15 which allows the gas generating agent 14 to be confined within the first cup 10 so as to shield the gas generating agent from the second cup E. Further, the separator 15 is so disposed as to cover the second cup E. In addition, seal materials, such as an O-ring 16, is arranged in a moisture inflow path through which moisture or equivalent comes in from outside of the gas generator 18.

Abstract: The present invention provides a gas generating agent for an air bag including a fuel component of nitrogenous organic compound and an oxidizing agent as its major components, to which at least one metal nitride or metal carbide that is allowed to react with a metallic component contained in the fuel component or the oxidizing agent to form slag is added, thus providing the effects of: solving the slag collecting problem which stands in the way of commercially practicing the nitrogenous organic compound base fuels; promoting the size reduction of the gas generator through the full use of high rate of gasification of the nitrogenous organic compound base fuels; and providing a gas generating agent molded member which is strong and stable with age by improving heat resistant properties and formability of the nitrogenous organic compound base fuels which are poor compared with the metallic compound azide of an inorganic matter.