Emergency lighting device
AssigneeDual-Lite Inc.
InventorsJoseph Wegrzyn, Jeff Holmes, Milt Erickson
Life of this patent
Estimating the term…
Abstract
An emergency lighting unit comprises a housing which contains the lighting unit circuitry. The housing includes a wall which defines at least one substantially circular opening therein. Extending partially through this opening is a substantially spherical lighting head containing a light source, such as a halogen lamp. The lighting head is rotatable by hand to any desired rotation to vary the field of illumination.
Claims46
An emergency lighting unit for providing emergency illumination during interruptions in utility power, the emergency lighting unit comprising:
- a housing, said housing defining an opening therethrough;
- a substantially spherical lighting head within said housing and extending partially through said opening;
- a light source mounted within said spherical lighting head and adapted to illuminate a region exterior of said housing;
- a socket for retaining said spherical lighting head within said opening to provide said spherical lighting head with a direction of illumination while permitting generally spherical movement of said spherical lighting head to vary the direction of illumination thereof, said socket enclosing a portion of said spherical lighting head and having an internal shape corresponding to an external shape of said spherical lighting head;
- and
- emergency electrical circuit elements electrically connected to said light source for providing emergency illumination during interruptions in utility power.
An emergency lighting unit for providing emergency illumination during interruptions in utility power, the emergency lighting unit comprising:
- a housing defining an opening therethrough;
- a substantially spherical lighting head within said housing and extending partially through said opening;
- a light source mounted within said spherical lighting head and adapted to illuminate a region exterior of said housing;
- a spherical mounting member for retaining said spherical lighting head within said opening to provide said spherical lighting head with a direction of illumination while permitting generally spherical movement of said spherical lighting head to vary the direction of illumination thereof;
- and
- emergency electrical circuit elements electrically connected to said light source for providing emergency illumination during interruptions in utility power.
An emergency lighting unit for providing emergency illumination during interruptions in utility power, the emergency lighting unit comprising:
- a housing defining an opening therethrough;
- a substantially spherical lighting head within said housing and extending partially through said opening;
- a light source mounted within said spherical lighting head and adapted to illuminate a region exterior of said housing;
- spherical mounting member for retaining said spherical lighting head within said opening to provide said spherical lighting head with a direction of illumination while permitting rotation of said spherical lighting head to vary the direction of illumination thereof, said spherical mounting member mounted on said housing and enclosing a portion of said spherical lighting head, said spherical mounting member comprises means for making frictional engagement with said spherical lighting head sufficient to fix the direction of illumination while permitting manual rotation of said spherical lighting head to vary the direction of illumination thereof, said frictional engagement means comprises fingers bearing against an outer surface of said spherical lighting head;
- and
- emergency electrical circuit elements electrically connected to said light source for providing emergency illumination during interruptions in utility power emergency lighting unit.
Dependencies are inferred from the claim text.