Battery compartment adapter cap for control of electric power and device equipped therewith
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United States of America Patent
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Dec 2, 2008
Grant Date -
Aug 3, 2006
app pub date -
Feb 14, 2005
filing date -
Feb 13, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A signalling device comprising an emission module operative on the application of battery power from a battery pack for the emission of a signal from at least one electromagnetic radiation emitting element, a battery compartment and a cap for retaining said battery pack in said battery compartment. The cap comprises at least one sensor and a switch for controlling the application of battery power. The switch is actuated when the at least one sensor detects a change in the environment in the vicinity of the device. Alternatively, the switch can be actuated remotely through a wireless interface or via a trip wire.
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