Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2008-01-15
2008-01-15
Nguyen, Matthew V. (Department: 2838)
Communications: electrical
Condition responsive indicating system
Specific condition
Reexamination Certificate
active
11045751
ABSTRACT:
Occupancy sensors are provided that do not require an external power source in order to operate. The sensors operate with a low voltage non-rechargeable battery and are fully functional for at least about 15-20 years. The sensors include a relay output capable of switching high or low voltage and high or low current with virtually no generated heat. The sensors require no warm-up period, no minimum load, and no external ground connection. The sensors are always active and are easily installed, having two electrically interchangeable outputs for coupling to, for example, a load and a load power source.
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Jones Day
Nguyen Matthew V.
Platner Brian P.
Tuma Garry J.
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