US 11,718,415 B2
Energy autonomous aircraft evacuation slide systems and methods
Elangovan Palaniappan, Bangalore (IN); and Petchi Subramanian, Bangalore (IN)
Assigned to Goodrich Corporation, Charlotte, NC (US)
Filed by Goodrich Corporation, Charlotte, NC (US)
Filed on Apr. 5, 2022, as Appl. No. 17/714,049.
Claims priority of application No. 202141024952 (IN), filed on Jun. 4, 2021.
Prior Publication US 2022/0388679 A1, Dec. 8, 2022
Int. Cl. B64D 47/02 (2006.01); B64D 25/14 (2006.01); F21S 9/04 (2006.01)
CPC B64D 47/02 (2013.01) [B64D 25/14 (2013.01); B64D 2203/00 (2013.01); F21S 9/04 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An aircraft evacuation system of an aircraft comprising:
an evacuation slide disposed at an opening in the aircraft, the evacuation slide made of flexible gastight material, and is disposable in each of a stowed configuration and deployed configuration;
a self-powered, wireless lighting system that comprises:
lighting modules disposed on the aircraft evacuation slide and spaced apart from each other, wherein the lighting modules operate independently of each other, each of lighting modules including:
a light source configured to provide illumination to the aircraft evacuation slide; and
a piezoelectric sensor operably connected to the light source and configured to generate electrical energy based upon a change in fluid pressure inside the evacuation slide.