Landing light fault annunciator
AssigneeSafe Flight Corporation
InventorsRandall Greene, Paul Levine
Life of this patent
Estimating the term…
Abstract
A helicopter of the type having an electrical system, a landing light, a master switch and a power supply of between about 18-32 V for operating the electrical system when the master switch is in an on position also includes a landing light fault detector. The landing light fault detector includes a light switch for turning the landing lights on and off and circuit means for detecting a fault in the landing light and for providing a signal indicative of a fault whether or not the light switch is in an on or off position.
Claims13
A landing light fault annunciator comprising:
- an aircraft;
- and
- a power supply and first means for providing electrical energy from said power supply to said aircraft;
- a landing light and a switch for turning said landing light on and off when said aircraft is connected to said power supply;
- circuit means for detecting a fault in said landing light and for providing a signal indicative of a fault when said helicopter is provided with power from said power supply;
- and
- wherein said means for providing a signal indicative of a fault in said landing light is operative whether or not said switch means is turned on or off.
A helicopter landing light fault annunciator comprising:
- a helicopter;
- and
- a power supply and first means for providing electrical energy from said power supply to said helicopter;
- a helicopter landing light and a switch for turning said landing light on and off when said helicopter is connected to said power supply;
- circuit means for detecting a fault in said landing light and for providing a signal indicative of a fault when said helicopter is provided with power from said power supply;
- and
- wherein said means for providing a signal indicative of a fault in said landing light is operative whether or not said switch means is turned on or off.
In a helicopter of the type having an electrical system, a landing light, a master switch, a landing light switch, and a power supply of between about 18 to 32 volts DC for operating said electrical system and illuminating said landing light when said master switch is in an on position, the improvement comprising:
- a landing light fault annunciator including a light switch for turning said landing light on and off and circuit means for detecting a fault in said landing light and providing a signal indicative of a fault when said master helicopter battery switch is connected to said power supply, and wherein said means for detecting a fault in said landing light and for providing a signal indicative of a fault in said landing light is operative whether or not said landing light switch is in an on or off position.
Dependencies are inferred from the claim text.