Patent ID: 8475024

Claim:
A photoluminescent track for an emergency lighting system comprising an elongate holder and an elongate photoluminescent insert, said holder having a top surface and a base wall including a bottom surface configured to be placed on an underlying support surface, said base wall extending lengthwise of the holder, a distance between said top surface and said bottom surface defining a vertical height of said holder, a pair of sidewalls extending lengthwise of said holder, said sidewalls being formed integrally with said base wall and defining with said base wall a channel that extends lengthwise of said holder, said channel having a mouth defining an opening in said top surface of said holder that is uppermost in use of the track wherein said insert is received in said channel, and is releasably secured in said channel between said sidewalls such that an upper surface of said insert is exposed within said opening, and wherein at least one of said sidewalls is inset from a side edge of said base wall, extends along said vertical height of said holder and terminates at said top surface of said holder in an outwardly directed flange that extends lengthwise of said holder, said flange being formed integrally with said inset sidewall, said flange and said base wall extending outwardly from said inset sidewall and defining with said inset sidewall, a groove that extends lengthwise of said holder, said groove having a mouth defining an opening along a side of said holder.