Safety helmet with alarm means for calling for help

Details Safety helmet with alarm means for calling for help Safety helmet with alarm means for calling for help

1998-03-24

1998-12-08

Hofsass, Jeffery

Communications: electrical

Condition responsive indicating system

Specific condition

340689, 340691, 2410, G08B 2300

Patent

active

058476512

ABSTRACT:
A safety helmet having an alarm device, which automatically gives an audio alarm signal to call for help upon an accident, and a fan for ventilation, the alarm device having signal lamps controlled by a first switch to flash when the safety helmet is put on the head, and an alarm control circuit controlled by a second switch to produce an audio alarm signal through a buzzer when the user loses consciousness due to an accident and the safety helmet falls with the user to the ground.

REFERENCES:
patent: 4680815 (1987-07-01), Hirsch et al.
patent: 4899133 (1990-02-01), Bartlett
patent: 5035239 (1991-07-01), Edwards
patent: 5090054 (1992-02-01), Grilliot et al.
patent: 5200736 (1993-04-01), Coombs et al.
patent: 5697099 (1997-12-01), Siska, Jr. et al.

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