Aircraft security system
AssigneeBrooks Aviation Services, Inc.
InventorTimothy J. Brooks
Life of this patent
Estimating the term…
Abstract
The security system provides an aircraft security system capable of protecting both single and multiple engine aircraft. Variations of the present system prevent unauthorized starting of protected aircraft and activate an alarm when engine starting it is attempted. Embodiments of the system draw no power from the aircraft when the security system is armed and in no way interferes with the normal starting or operation of the aircraft when the system is disarmed. Embodiments of the present system can activate an alarm when an aircraft's doors or panels are opened. Embodiments of the present invention can activate an alarm when installed equipment or other devices are tampered with or removed from their housings.
Claims22
A system for securing an aircraft having a starter, a starter switch, and a master switch to connect, in an on position, a first power source to a main power bus, the system comprising:
- a security system connected to control power to the starter, the security system including:
- a security switch adapted to arm the security system in an armed state and to disarm the security system in a disarmed state;
- a second power source to provide backup power to the security system;
- a controllable switch adapted to complete a starter circuit for powering the starter in a first mode and to break the starter circuit in a second mode, the controllable switch adapted to be controlled by sensing states of at least the security switch and the main power bus,
- and wherein in the armed state the security system is configured to prevent activation of the starter upon detection of attempted use of the aircraft before disarming the security system.
An aircraft electrical system comprising:
- a master switch connected to a battery;
- a starter relay having a starter switch interconnecting the main switch to the starter relay;
- a security switch connected to the main switch;
- and
- a security relay having a coil connected to the security switch;
- wherein the security relay interconnects the main switch and the starter relay in a coil unpowered state of operation, and further disconnects the main switch and the starter relay and interconnects a remote battery and the coil in a coil powered state of operation.
An apparatus for securing an aircraft, comprising:
- a first power supply;
- a starter and starter relay for use in starting an engine of the aircraft;
- a main power bus and master switch providing power to the starter relay and starter;
- and
- switch means for controllably disconnecting the first power supply from the starter relay and starter upon detection of an attempted intrusion while in an armed state.
Dependencies are inferred from the claim text.