Rapid burning propellent charge for automobile air bag inflators, rocket motors, and igniters therefor
First Claim
1. An igniter comprises a gas generant charge including a reticulated substrate having a network of interconnected ligaments and a coating of solid gas generant composition on said ligaments, said solid gas generant composition being interconnected in the form of a network, said coating has a thickness such that interstices are between coated ligaments which interstices define open gas generant surface area for supporting combustion, said interconnected ligaments defining voids which are open to each other so that the gas generant may constitute a single mass.
3 Assignments
0 Petitions
Accused Products
Abstract
A rapid burning propellant charge for applications including igniters, launch eject motors, and gas generators for automobile air bags. 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.
91 Citations
11 Claims
- 1. An igniter comprises a gas generant charge including a reticulated substrate having a network of interconnected ligaments and a coating of solid gas generant composition on said ligaments, said solid gas generant composition being interconnected in the form of a network, said coating has a thickness such that interstices are between coated ligaments which interstices define open gas generant surface area for supporting combustion, said interconnected ligaments defining voids which are open to each other so that the gas generant may constitute a single mass.
- 4. A canister fired missile comprises a launch motor, a flight motor, and means for separating the launch motor from the flight motor, and said launch motor includes a case, a propellant charge within said case, a nozzle, and means for igniting said propellant charge, said propellant charge includes a reticulated substrate having a network of interconnected ligaments and a coating of solid propellant material on said ligaments, said solid propellant material being interconnected in the form of a network, said coating has a thickness such that interstices are between coated ligaments which interstices define open propellant surface area for supporting combustion, said interconnected ligaments defining voids which are open to each other so that the propellant may constitute a single mass.
Specification