Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
December 27, 2011
Patent Application Number
12485118
Date Filed
June 16, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
A wireless communication system for use in an explosive environment includes at least a pair of explosion-proof communication relay modules which relay communication to mobile communication devices in locations beyond the reach of normal wireless communications with base station antennas. The explosion-proof communication relay modules include features to preclude the generation of a spark or heat source which could ignite any explosive gas or vapor. Similarly, explosion-proof mobile devices include design features which also preclude the generation of a spark or heat source.
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