Pyrotechnic window breaker
First Claim
Patent Images
1. A window breaker comprising:
- a housing including a slot and a cavity having a closed first end and a second end, the slot extending through a wall of the housing and extending into the cavity, the slot adapted to receive a portion of a vehicle window pane;
a pyrotechnic device fixedly attached to the housing and at least partially disposed in the cavity; and
a piston disposed in the cavity between the pyrotechnic device and the first end, the piston being movable away from the pyrotechnic device within the cavity from an undeployed position to a deployed position in response to actuation of the pyrotechnic device.
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Accused Products
Abstract
A window breaker is provided that may include a housing, a pyrotechnic device and a piston. The housing may include a slot and a cavity having a first end and a second end. The slot may extend through a wall of the housing and into the cavity. The pyrotechnic device may be fixedly attached to the housing and at least partially disposed in the cavity. The piston may be disposed in the cavity between the pyrotechnic device and the first end. The piston may be movable away from the pyrotechnic device within the cavity from an undeployed position to a deployed position in response to actuation of the pyrotechnic device.
18 Citations
18 Claims
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1. A window breaker comprising:
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a housing including a slot and a cavity having a closed first end and a second end, the slot extending through a wall of the housing and extending into the cavity, the slot adapted to receive a portion of a vehicle window pane; a pyrotechnic device fixedly attached to the housing and at least partially disposed in the cavity; and a piston disposed in the cavity between the pyrotechnic device and the first end, the piston being movable away from the pyrotechnic device within the cavity from an undeployed position to a deployed position in response to actuation of the pyrotechnic device. - View Dependent Claims (2, 3, 4, 5)
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6. A system comprising:
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a window breaker including a housing and a piston, the housing having a slot and a cavity including a closed first end and a second end, the slot extending through a wall of the housing and extending into the cavity, the slot adapted to receive a portion of a vehicle window pane, the piston being disposed in the cavity between the first and second ends and movable within the cavity relative to the housing between an undeployed position and a deployed position; and a controller electrically connected to the window breaker and operable to cause the piston to move from the undeployed position to the deployed position in response to a predetermined condition. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A vehicle comprising:
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a door frame; a window pane attached to the door frame for movement relative thereto; a window breaker attached to the door frame and including a housing, a pyrotechnic device and a piston, the housing having a slot and a cavity including a closed first end and a second end, the slot extending through a wall of the housing and extending into the cavity, the slot receiving a portion of the window pane, the pyrotechnic device being fixedly attached to the housing and at least partially disposed in the cavity, the piston being disposed in the cavity between the pyrotechnic device and the first end, the piston cooperating with the pyrotechnic device to form a combustion chamber therebetween such that a combustion event within the combustion chamber moves the piston within the cavity relative to the pyrotechnic device from an undeployed position to a deployed position; and a controller electrically connected to the pyrotechnic device and operable to actuate the pyrotechnic device to cause the piston to move from the undeployed position to the deployed position to shatter the window frame in response to a predetermined vehicle condition. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification