Communications: electrical – Pedestrian guidance
Patent
1989-03-29
1990-08-21
Crosland, Donnie L.
Communications: electrical
Pedestrian guidance
340691, 340692, 340573, 3408151, 340525, 340561, 40550, 40427, G08G 1095
Patent
active
049510452
ABSTRACT:
A portable electronic warning device for temporary conditions including a sensor to detect the presence of a pedestrian at a minimum first predetermined position, the sensor connected to circuitry which provides output to a plurality of focusing lights, preferably concentric bands of light, which direct the attention of the pedestrian to a message positioned concentrically within the lights, the device optionally including an audible alarm to simultaneously audibly alert a pedestrian.
REFERENCES:
patent: 2595993 (1952-05-01), Templeman et al.
patent: 3459961 (1969-08-01), Ravas
patent: 3560950 (1971-02-01), Peters
patent: 3594760 (1971-07-01), Haker
patent: 3648235 (1972-03-01), Cahill
patent: 3662371 (1972-05-01), Lee et al.
patent: 3675190 (1972-07-01), Auer, Jr. et al.
patent: 3760399 (1973-09-01), Schwarz
patent: 3771123 (1973-11-01), Lanes
patent: 4179691 (1979-12-01), Keller
patent: 4195234 (1980-03-01), Berman
patent: 4344071 (1982-08-01), Allen
patent: 4433328 (1984-02-01), Saphir et al.
patent: 4551654 (1985-11-01), Barnum
patent: 4660024 (1987-04-01), McMaster
patent: 4661720 (1987-04-01), Cameron, Jr. et al.
patent: 4709330 (1987-11-01), Yokoi et al.
"The Omen", Pedtracon Pedestrian Traffic Control, 2-21-90.
Knapp Floyd H.
Rogers Gregory C.
Crosland Donnie L.
Intelligent Safety Technology, Inc.
LandOfFree
Portable electronic warning device for temporary conditions does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Portable electronic warning device for temporary conditions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Portable electronic warning device for temporary conditions will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1681461