Pyrotechnic non-azide gas generants based on a non-hydrogen containing tetrazole compound
First Claim
1. A solid pellet for generating non-toxic nitrogen gas consisting essentially of a non-hydrogen containing tetrazole compound and a non-oxygen containing oxidizer selected from the group consisting of sulfur, chromium trichloride, molybdenum disulfide, iron trifluoride, and admixture thereof.
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Accused Products
Abstract
A solid non-azide composition for generating non-toxic nitrogen gas intended for use in the deployment of inflatable safety crash bags for driver and passenger protection in vehicles consists essentially of a non-hydrogen containing tetrazole compound and a non-oxygen containing oxidizer, examples of the tetrazole being di-alkali metal or mono-alkaline earth metal salts of 5,5'"'"'-bitetrazole, and examples of the oxidizer being sulfur, molybdenum disulfide, chromium trichloride and iron trifluoride.
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Citations
18 Claims
- 1. A solid pellet for generating non-toxic nitrogen gas consisting essentially of a non-hydrogen containing tetrazole compound and a non-oxygen containing oxidizer selected from the group consisting of sulfur, chromium trichloride, molybdenum disulfide, iron trifluoride, and admixture thereof.
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14. In a method for inflating an air bag comprising igniting a pellet of pyrotechnic material to generate a gas, filtering and cooling the generated gas, and rising the filtered and cooled gas to inflate the air bag, the improvement comprising the step of using a solid pellet for generating non-toxic nitrogen gas consisting essentially of a non-hydrogen containing tetrazole compound and a non-oxygen containing oxidizer selected from the group consisting of sulfur, chromium trichloride, molybdenum disulfide, iron trifluoride, and admixtures thereof, whereby the air bag when inflated contains a concentration of less than 30 ppm of hydrogen sulfide.
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15. A method for the generation of a non-toxic nitrogen gas which comprises:
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(a) compounding a gas generant composition consisting essentially of a non-hydrogen containing tetrazole compound and a non-oxygen containing oxidizer selected from the group consisting of sulfur, chromium trichloride, molybdenum disulfide, iron trifluoride, and admixtures thereof; (b) pelletizing said composition; and (c) igniting said pelletized composition to produce a non-toxic nitrogen gas. - View Dependent Claims (16, 17, 18)
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Specification