Rapid buring propellant charge for automobile air bag inflators, rocket motors, and igniters therefor
First Claim
1. A propellant charge comprises a reticulated substrate having a quantity of interconnected ligaments and a coating of solid propellant material on said ligaments, said coating has a thickness such that interstices are between coated ligaments which interstices define propellant surface area for combustion.
4 Assignments
0 Petitions
Reexamination
Accused Products
Abstract
A rapid burning propellant charge for applications including igniters, launch eject motors, and gas generators for automobile air gags. The propellant charge comprises a reticulated substrate having a quantity of interconnected ligaments and a coating of solid propellant material on the ligaments. In order to provide a large amount of surface area for a fast burn time, interstices are between coated ligaments to define propellant surface area for combustion. In applications where minimum smoke is desired, the reticulated substrate is preferably composed of carbon, graphite, or a non-combustible material, and the solid propellant material is preferably a minimum smoke type.
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Citations
7 Claims
- 1. A propellant charge comprises a reticulated substrate having a quantity of interconnected ligaments and a coating of solid propellant material on said ligaments, said coating has a thickness such that interstices are between coated ligaments which interstices define propellant surface area for combustion.
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4. A method of making a propellant charge comprises the steps of:
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a. preparing a reticulated substrate having a quantity of interconnected ligaments, b. coating the ligaments with a solid propellant material, and c. maintaining the thickness of the coating such that interstices are between coated ligaments which interstices define propellant surface area for combustion. - View Dependent Claims (5, 6, 7)
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Specification