Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2005-05-24
2005-05-24
Lieu, Julie Bichngoc (Department: 2636)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S657000, C340S660000, C340S661000, C340S573100, C340S539100, C340S539110, C340S539210
Reexamination Certificate
active
06897783
ABSTRACT:
A personal electrical injury protection system is provided which can be worn by electricians, construction workers, or other individuals working around or with low-voltage lines (i.e. generally less than about 600 volts). The personal electrical injury protection system has both a proximity warning component which provides a warning of potential electrical hazards upon close approach to the low-voltage power line and an electrical contact protection component which turns off the power upon actual electrical contact with the power line. The present personal electrical protection system relies on a radio frequency transmitter attached to the worker or person to be protected and a radio receiver/controller connected to the power line. The radio frequency transmitter has a low frequency generator which is used for electrical-contact protection and a high frequency generator which is used for proximity warning.
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patent: 4532501 (1985-07-01), Hoffman
patent: 4983954 (1991-01-01), Huston
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Conover David L.
Jackson Larry L.
Powers, Jr. John R.
Zeng Shengke
Klarquist & Sparkman, LLP
Lieu Julie Bichngoc
The United States of America as represented by the Department of
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