Personal safety system and process for the operation of a personal safety system

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United States of America Patent

PATENT NO 9618255
APP PUB NO 20140096541A1
SERIAL NO

14045896

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A personal safety system in the form of a refuge chamber includes at least one main room and a cooling device provided for cooling the ambient air of the main room in the form of a CO2 cooling system (10). The CO2 cooling system (10) has a heat exchanger (28) and a first and a second pressure reducer (20, 32) upstream and downstream of heat exchanger (28), respectively. The heat exchanger (28) has a plurality of alternatingly or cyclically usable cooling coils. A process is provided for the operation of such a refuge chamber.

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Patent Owner(s)

  • DRAEGER SAFETY AG & CO. KGAA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lühr, Matthias Lübeck, DE 3 4

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