Air-droppable loudspeaker
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United States of America Patent
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Apr 10, 2012
Grant Date -
Sep 7, 2006
app pub date -
Dec 22, 2005
filing date -
Dec 29, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A loudspeaker has a horn adapted to both cause air drag and to direct acoustic waves. A speaker and signal generator are electrically coupled to the speaker and secure to the horn. The loudspeaker is transported over a target and dropped from a high elevation. Upon landing the loudspeaker commences broadcasting a message. A shock absorber may secure to the horn and absorbs some of the shock of impact. Contact sensors or motions sensors may trigger broadcasting a message from the speaker. A portion of the horn may be expandable to increase the size of the horn upon deployment or upon impact with the ground.
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