Alarm enhancing protective cover for safety instruments with optional calibration chamber
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United States of America Patent
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Jun 23, 2015
Grant Date -
Apr 3, 2014
app pub date -
Jul 2, 2013
filing date -
Oct 2, 2012
priority date (Note) -
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Abstract
Methods and systems to redirect the audible and visible signals from alarms on a portable safety device. A cover (10) cooperates with a portable safety device (50) to define a sound chamber (12) that amplifies audible warning signals. A visual alarm guide (14) also is provided. A calibration adapter (500) affords quick and simple bump testing and calibration of the portable safety device.
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