Shock hazard warning device

Details Shock hazard warning device Shock hazard warning device

1989-09-29

1991-01-08

Wooden, Donald O.

Communications: electrical

Condition responsive indicating system

Specific condition

340661, 324457, G08B 2100

Patent

active

049839543

ABSTRACT:
A warning device (10) is provided for use by electrical technicians or the like to indicate the presence of an electrical shock hazard. The warning device is adapted to be worn on the wrists or the like and includes a filtered detection circuit (32,34) for sensing a target signal such as an ac noise signal emitted from an electrical source. When the target signal magnitude exceeds a selected threshold (40), such as when the wearer moves into close proximity with the signal source, the warning device (10) activates an alarm (42,44) to indicate the presence of a shock hazard.

REFERENCES:
patent: 3309690 (1967-03-01), Moffitt
patent: 4277745 (1981-07-01), Deno
patent: 4714915 (1987-12-01), Hascal et al.

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