Warning light system for alerting pedestrians and passenger...

Details Warning light system for alerting pedestrians and passenger... Warning light system for alerting pedestrians and passenger...

2005-12-27

2005-12-27

Pope, Daryl C (Department: 2632)

Communications: electrical

Traffic control indicator

Intersection normally under local controller

C340S906000, C340S907000, C340S331000, C340S332000, C340S902000, C340S905000, C116S06300T

Reexamination Certificate

active

06980125

ABSTRACT:
A warning light system for a traffic intersection for alerting pedestrians and operators of passenger vehicles to the approach of an emergency vehicle. The warning light system is activated only by sounds in the range of frequencies which are emitted by the siren of an emergency vehicle. The warning light system has a warning light assembly having a control unit, and also has an audio sensor unit. The warning light assembly has a blue light and a white light, which flash alternately and repeatedly, after receipt of an audio signal by the audio sensor unit from the siren of an emergency vehicle, and processing of that signal by the control unit. The lights of the warning light assembly continuously flash until the sound emitted from the siren is no longer detectable by the audio sensor.

REFERENCES:
patent: 4806931 (1989-02-01), Nelson
patent: 5287411 (1994-02-01), Hill
patent: 5345232 (1994-09-01), Robertson
patent: 5448219 (1995-09-01), Yoshikawa et al.
patent: 5495242 (1996-02-01), Kick et al.
patent: 5710555 (1998-01-01), McConnell et al.
patent: 5801646 (1998-09-01), Pena
patent: 5889475 (1999-03-01), Klosinski
patent: 6064319 (2000-05-01), Matta
patent: 6072406 (2000-06-01), Leonard et al.
patent: 6522263 (2003-02-01), Jones

Affiliated with

Also associated with

Rating

Warning light system for alerting pedestrians and passenger... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Warning light system for alerting pedestrians and passenger..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Warning light system for alerting pedestrians and passenger... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3475793