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US 8,138,928 B2Granted
Multiple event notification appliance
AssigneeSimplexGrinnell LP
InventorsDaniel G. Farley, Todd Shearer, John Durst
Life of this patent
Estimating the term…
Abstract
An apparatus, system and method including an event notification appliance including first and second light sources configured to indicate an event, including a fire and/or alert.
Claims17
An event notification appliance comprising:
- a first light source configured to emit light at a first wavelength;
- a reflector adjacent said first light source, said reflector configured to reflect said light at said first wavelength through a protective dome;
- and
- a second light source positioned to emit light at a second wavelength into an end surface of said protective dome, said second wavelength being different from said first wavelength, said protective dome being configured to direct said light at said second wavelength outwardly from said dome;
- wherein said protective dome comprises a plurality of surfaces configured to direct said light at said second wavelength outwardly from said dome.
2 more elements
A system comprising:
- an event notification appliance comprising:
- a first light source configured to emit light at a first wavelength;
- a reflector adjacent said first light source, said reflector configured to reflect said light at said first wavelength through a protective dome;
- and
- a second light source positioned to emit light at a second wavelength into an end surface of said protective dome, said second wavelength being different from said first wavelength, said protective dome being configured to direct said light at said second wavelength outwardly from said dome;
- wherein said protective dome comprises a plurality of surfaces configured to direct said light at said second wavelength outwardly from said dome;
- and
- a signal source coupled to said event notification appliance, said signal source providing an output to said event notification appliance in response to detection of a fire or a non-fire alert condition;
- said event notification appliance being configured to energize said first light source or said second light source in response to said output from said signal source to provide a visual notification of said fire or said non-fire alert condition.
6 more elements
A method of indicating an event, said method comprising:
- detecting said event;
- energizing a first light source of an event notification appliance if said event is a fire event, said first light source emitting light at a first wavelength through a protective dome;
- and
- energizing a second light source of said event notification appliance if said event is a non-fire alert condition, said second light source positioned and emitting light at a second wavelength into an end surface of said protective dome, said second wavelength being different from said first wavelength, said protective dome directing said light at said second wavelength outwardly from said dome;
- wherein said protective dome comprises a plurality of surfaces configured to direct said light at said second wavelength outwardly from said dome.
2 more elements
Dependencies are inferred from the claim text.