Integrated alarm device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9280885
APP PUB NO 20140077961A1
SERIAL NO

14024661

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Abstract

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An integrated alarm device for a proximity detection system that is based on use of low frequency magnetic fields, to avoid conflicts in crowded work sites. A proximity detection system includes a magnetic field generator, and a personal alarm device. The personal alarm device includes an antenna configured to detect a magnetic field, a controller electrically coupled to the antenna, and a warning device electrically coupled to the controller. The warning device includes a sounder device and a shield, and the shield is adapted to attenuate EMI emitted from the sounder from reaching the antenna and/or from inducing current in electrical components in the personal alarm device.

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First Claim

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Patent Owner(s)

  • STRATA SAFETY PRODUCTS, LLC

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Frederick, Larry D Hunstville, US 48 683

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