Patent ID: 8938877
Filing Date: 2015-01-27
Classification: B64F,Y10T

Abstract:
1. A method of retrofitting a two-sided airport runway sign ( 10 ) adjacent a runway, the runway sign ( 10 ) being rectangular in profile and emitting light through rectangular, translucent front and rear faces ( 11 ), the front and rear faces ( 11 ) being longitudinally separated by first and second opposing longitudinal edges ( 17 , 16 ) and being perpendicular to the runway, the runway sign ( 10 ) including a plurality of original equipment lamps in its interior along the first and second longitudinal edges ( 17 , 16 ) that are disposed in respective electrical sockets proximate the longitudinal edges ( 17 , 16 ), the runway sign ( 10 ) also including a diffuser ( 130 ) in its interior adjacent one of the original equipment lamps, the method comprising: opening the runway sign ( electrically disengaging all the original equipment lamps on the first longitudinal edge ( removing the diffuser ( securing a single LED lamp ( closing the runway sign ( energizing the single LED lamp ( operating the runway sign (