US Patent No: 5,572,183

Number of patents in Portfolio can not be more than 2000

Laser light fire evacuation system

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Abstract

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A laser light fire evacuation system, and a method for its use, is provided including a source of laser light in the visible spectrum which is directed into multiple vertical columns of light extending from the ceiling to the floor of a hallway or corridor, in which the multiple columns are sequenced from left-to-right or from right-to-left during a fire to appropriately direct persons to the nearest safe exit. Each column of laser light is nearly invisible when the smoke density in the air is at a low level, however, as the smoke density increases, the laser light beam will increase in perceived intensity and consistency. In one embodiment, the laser light source is directed toward a rotating mirror which redirects the light into a rotating beacon as the mirror rotates. Several fiber optic cables are located around the periphery of the rotating mirror and intercept the light beam, thereby having laser light directed down each of the fiber optic cables, in sequence. The fiber optic cables are installed above the ceiling of a hallway or corridor and terminate in several locations along the ceiling of that corridor or hallway. As laser light is sequentially directed down each of these fiber optic cables, it will produce a sequencing pattern of laser light columns that each extend from the ceiling to the floor along that corridor or hallway. The beam rotator can be turned in either the clockwise or counter-clockwise direction to reverse the sequence of the light columns. Another embodiment uses adjustable mirrors to redirect the direction of the laser light beam. A third embodiment uses electrical cables and laser diodes to individually created columns of sequenced laser light.

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Patent Owner(s)

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International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sweeney, Gary L 10693 Silverbrook Dr., Cincinnati, OH 45240 1 20

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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KOCH ACQUISITION CORPORATION (1)
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Safety Intelligence Systems (1)
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Other [Check patent profile for assignment information] (1)
4,489,308 Emergency exit indicators 27 1983

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
L.I.F.E. SUPPORT TECHNOLOGIES, LLC (3)
7,576,659 Smoke detection and laser escape indication system utilizing base and satellite 2 2006
7,786,879 Self-powered rechargeable smoke/carbon monoxide detector 0 2007
7,592,923 Smoke detection and laser escape indication system utilizing a control master with base and satellite stations 3 2008
 
AMERICAN XTAL TECHNOLOGY, INC. (1)
6,150,943 Laser director for fire evacuation path 52 1999
 
CONSILIUM MARINE AB (1)
5,815,068 Guiding light system and lighting strip 19 1996
 
ELECTRONIC THEATRE CONTROLS, INC. (1)
7,232,236 Floor marking apparatus and system, and method of marking a floor 2 2005
 
GE SECURITY, INC. (1)
7,218,238 Fire alarm system with method of building occupant evacuation 28 2004
 
HONEYWELL INTERNATIONAL INC. (1)
7,026,947 Building emergency path finding systems and method 5 2003
 
J.M.A. MARINE, INC. (1)
6,126,299 Laser light navigational safety system for improved detectability in low visibility conditions 8 1997
 
MOTOROLA SOLUTIONS, INC. (1)
7,199,724 Method and apparatus to aide in emergency egress 5 2005
 
ROBERT RANDALL KELLY (1)
6,181,251 Combination smoke detection device and laser escape indicator 16 2000
 
Zircon Corporation (1)
7,181,855 Methods and devices for enhancing intensity of on-surface lines cast by laser line projectors or the like 3 2004
 
Other [Check patent profile for assignment information] (8)
6,257,750 Illuminating fire hose 11 2000
6,864,799 Emergency lighting device for firefighters 6 2003
6,785,992 Emergency exit sign 6 2003
7,626,507 Intelligent directional fire alarm system 4 2006
7,393,121 Laser guidance emergency navigation method and system 0 2007
7,690,157 Secure data center having redundant cooling and blast protection for protecting computer servers by the positioning of air handling units, fiber optic cable and a fire suppression system 0 2008
8,109,043 Secure data center having redundant cooling and blast protection for protecting computer servers by the positioning of air handling units, fiber optic cable and a fire suppressiion system 0 2010
8,786,189 Integrated exit signs and monitoring system 0 2011

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