Shear-Based Inertia Igniters With Preset No-Fire Protection for Munitions and the Like
First Claim
1. An inertial igniter for igniting a thermal battery upon a predetermined acceleration event, the inertial igniter comprising:
- a base having a first projection;
a striker mass rotatably connected to the base through a rotatable connection, the base having a second projection aligned with the first projection such that when the striker mass is rotated towards the base, the first projection impacts the second projection;
a rotation prevention mechanism for preventing impact of the first and second projections unless the predetermined acceleration event is experienced; and
a spring for biasing the striker mass in a biasing direction away from the base, the spring being disposed between a portion of the striker mass and a portion of the rotation prevention mechanism.
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Abstract
An inertial igniter for igniting a thermal battery upon a predetermined acceleration event. The inertial igniter including: a base having a first projection; a striker mass rotatably connected to the base through a rotatable connection, the base having a second projection aligned with the first projection such that when the striker mass is rotated towards the base, the first projection impacts the second projection; a rotation prevention mechanism for preventing impact of the first and second projections unless the predetermined acceleration event is experienced; and a spring for biasing the striker mass in a biasing direction away from the base, the spring being disposed between a portion of the striker mass and a portion of the rotation prevention mechanism.
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Citations
6 Claims
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1. An inertial igniter for igniting a thermal battery upon a predetermined acceleration event, the inertial igniter comprising:
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a base having a first projection; a striker mass rotatably connected to the base through a rotatable connection, the base having a second projection aligned with the first projection such that when the striker mass is rotated towards the base, the first projection impacts the second projection; a rotation prevention mechanism for preventing impact of the first and second projections unless the predetermined acceleration event is experienced; and a spring for biasing the striker mass in a biasing direction away from the base, the spring being disposed between a portion of the striker mass and a portion of the rotation prevention mechanism. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification