Audible pedestrian turn signal alert system

Details Audible pedestrian turn signal alert system Audible pedestrian turn signal alert system

1999-12-01

2000-11-28

Hofsass, Jeffery A.

Communications: electrical

Land vehicle alarms or indicators

External alarm or indicator of movement

340433, 340463, 340465, 340474, 340475, B60Q 126

Patent

active

061541257

ABSTRACT:
A audible pedestrian alert system for use with vehicles having a wide turning radius such as buses and trucks. A device is disposed in the rear wheel well of the vehicle and is operatively connected to a conventional vehicle turn signal circuit including a battery and a turn signal switch operable to selectively connect the battery through a switching device to at least a first turn signal indicator lamp through a first contact point and to at least a second turn signal indicator lamp through a second contact point. The device includes a sound generating device and a timing and signal conditioning circuit operably connected to the turn signal switch for connecting the battery to the sound generating device. Upon activation of the turn signal switch, a pulsed tone is audible for a pre-determined time.

REFERENCES:
patent: 3343123 (1967-09-01), Troesh
patent: 3587094 (1971-06-01), Raymond
patent: 4754256 (1988-06-01), Fluhr et al.
patent: 4903007 (1990-02-01), Gottlieb
patent: 4924208 (1990-05-01), Coughlin
patent: 4980669 (1990-12-01), Knowles
patent: 5293151 (1994-03-01), Rose
patent: 5398024 (1995-03-01), Knowles

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