Low drag warning system for emergency vehicles

Details Low drag warning system for emergency vehicles Low drag warning system for emergency vehicles

1983-05-16

1987-01-06

Crosland, Donnie L.

Communications: electrical

Audible indication

Ultrasonic pest control

340384E, 340 87, 340 88, 340 50, 181224, 181143, 181198, G08B 300, E04F 1704

Patent

active

046350390

ABSTRACT:
A low drag warning system for emergency vehicles having an aerodynamic design reducing turbulent flow past the housing for increased fuel economy and performance. The housing of the warning light system is provided with a pair of light globe compartments possessing an efficient aerodynamic design and a central speaker housing. The speaker housing has a downward sloped speaker grill to create a flow pattern also reducing drag. The air flow is introduced into the speaker housing with a ram effect. Outflow ports from the speaker housing circulate an air flow within the domes to prevent condensation and cool the components therein. The speaker mounted in the housing attains increased sound output using a relatively low power drive.

REFERENCES:
patent: 3404371 (1968-10-01), Gosswiller
patent: 3789358 (1974-01-01), Ellis
patent: 4189709 (1980-02-01), Gosswiller
patent: 4334211 (1982-06-01), McConnell et al.

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