Emergency lighting unit
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorGeorge R. Miller
Life of this patent
Estimating the term…
Abstract
An emergency lighting unit having a electroluminescent lamp is provided for se in locating an aircraft exit. The emergency lighting unit contains a battery and an inverter for converting DC battery current to high frequency alternating current required for illumination of the electroluminescent lamp. Various means are provided for automatically lighting the lamp during a distress situation. The lighting unit is configured to serve as a handle for use in leaving a disabled aircraft.
Claims2
In an aircraft, at least one emergency lighting unit mounted to a bulkhead by standoff brackets to serve as an evacuation light and a handle, said lighting unit comprising,
- a casing formed by a flat metallic heat sink and a translucent cover,
- an electroluminescent lamp fixed to said translucent cover,
- alternating current means within said casing for illuminating said electroluminescent lamp, and
- circuit means for connecting said alternating current means to said electroluminescent lamp.
Dependencies are inferred from the claim text.