Emergency lighting
AssigneeSaf-T-Glo Limited
InventorPeter David Stokes
Life of this patent
Estimating the term…
Abstract
A photoluminescent track for an emergency lighting system comprises an elongate holder and an elongate photoluminescent insert received in a channel extending lengthwise of the holder. The insert is a push-fit in the channel and is retained by engagement of opposed inwardly directed lips at the mouth of the channel with the upper side edges of the insert so that the upper surface of the insert is exposed within the opening.
Claims15
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.
A photoluminescent track for an emergency lighting system consisting of:
- an elongate holder including a top surface and a bottom wall having a bottom surface configured to be placed on an underlying support surface, said holder having a channel extending lengthwise of said holder, wherein a vertical height of said holder is defined by a distance between said top surface and said bottom surface;
- and
- a separate elongate photoluminescent insert, said channel defining an opening in an upper surface of said holder that is uppermost in use of said track in which said insert is received and releasably secured between opposing sidewalls of said channel, and said holder including at least one sidewall and a flange, said at least one sidewall extending along said vertical height of said holder, wherein said flange and said base wall extend outwardly from said at least one sidewall, and said flange, said base wall and said at least one sidewall defining a groove extending along an entire length of said sidewall and on at least one side edge of said holder for receiving a marginal edge of a floor covering, wherein said holder is formed integrally with said channel and said groove.
A photoluminescent track for an emergency lighting system consisting of:
- an elongate holder having a top surface, a base wall with a bottom surface configured to be placed on an underlying support surface and an integrally formed channel extending lengthwise of said holder, wherein a distance between said top surface and said bottom surface defines an entire vertical height of said holder, said channel opening to an upper surface of said holder and inset from side edges of said holder, and said holder including a pair of sidewalls, each of said pair of sidewalls extending along said entire vertical height of said holder, said holder including a flange, wherein said flange and said base wall of said holder extend outwardly from each of said pair of sidewalls, each said flange, said base wall and said sidewall defining an integrally formed groove extending along said sidewall and extending lengthwise of said holder, said grooves opening to said side edges of said holder;
- a photoluminescent insert having an elongate light transmitting casing and an elongate photoluminescent member housed within said casing, said casing being received in said channel and releasably secured between opposing sidewalls of said channel so that an upper surface of said insert is exposed for direct transmission of light through said casing;
- and
- a base wall of said channel is provided with grooves extending lengthwise of said channel adjacent to said sidewalls for collecting any liquid that penetrates into said channel.
Dependencies are inferred from the claim text.