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2023
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Invention
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Proximity detection system and method and collision avoidance system and method of using proximit... |
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G/S
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non-electric fluid powered MSHA approved scrubber for cleaning air in a refuge shelter in a mine |
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G/S
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Equipment, namely, wireless communication equipment in the form of transmitters, receivers, proce... |
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2022
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Invention
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Proximity detection system and method and collision avoidance system and method using proximity d... |
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2015
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Invention
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Proximity detection system with approach zone. Collision avoidance systems and methods. In some e... |
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Invention
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Proximity detection system with concurrent rf and magnetic fields. This disclosure provides a met... |
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2014
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Invention
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Method and apparatus for protecting a miner. An apparatus for protecting a miner from injury by a... |
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G/S
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Metal mine roof supports |
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Invention
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Mine wifi and method. A telecommunications system for a mine with tunnels having a plurality of n... |
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Invention
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Change over station and method.
A change over station (COS) for persons in a hazardous environme... |
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Invention
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Mine escape self-rescuer system and method.
A method for a miner in a mine to breathe in the min... |
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2013
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Invention
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Proximity detection systems and method for internal traffic control. Embodiments described herein... |
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Invention
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Integrated alarm device. An integrated alarm device for a proximity detection system that is base... |
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Invention
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Apparatus and method for affecting air. An apparatus for affecting air includes a housing. The ap... |
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Invention
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Air conditioner for refuge shelter, system and method.
An air conditioning system for a mine tha... |
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Invention
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Proximity warning system with silent zones. Various proximity detection zones for work sites that... |
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Invention
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C-channel panel, overcast, stopping and method.
A panel includes a core having a top, a bottom, ... |
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Invention
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Method, controller, and system for tunnel communication. A communication system for allowing pers... |
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2012
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Invention
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Proximity detection system with concurrent rf and magnetic fields. This disclosure provides... |
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Invention
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Refuge chamber and method. A refuge chamber for miners in a mine includes a skid. The chamber inc... |
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2011
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Invention
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Yieldable support prop and method. A yield support prop for a mine includes a first metal tube ex... |
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Invention
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Telescoping modular shelter and method. A shelter to protect users from an external environment h... |
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Invention
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Lite mine roof support crib and method.
A mine roof support crib. The crib includes a plurality ... |
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2010
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Invention
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Proximity warning system with silent zones. A system and method is contemplated for provid... |
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2009
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Invention
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Personal alarm device for headwear for proximity detection. Embodiments described herein relate t... |
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Invention
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Electromagnetic field adjustment for proximity detection. Embodiments described herein relate to ... |
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2008
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Invention
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System for communicating location of survivors in mine emergencies. The disclosed system uses sei... |
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Invention
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Apparatus, system and method for cleaning air. An apparatus for cleaning air includes a housing h... |
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2007
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Invention
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Inflatable shelter for use in hostile environment. A flexible, inflatable shelter is held within ... |
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Invention
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Interactive magnetic marker field for safety systems and complex proximity warning system. The in... |
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Invention
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Steel anchored reinforced mine seal. A reinforced mine ventilation seal anchored with steel dowel... |
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G/S
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Inflatable and portable refuge chamber used for mine safety |
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2006
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G/S
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Safety system primarily composed of computer software, magnetic alarm, magnetic tracking tags and... |
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2005
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Invention
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Safety system for mining equipment. A safety system for mining equipment is provided having a pro... |
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2002
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Invention
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Delivery system for carbon dioxide absorption material. A delivery system for carbon dioxide abso... |
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2001
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Invention
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Non-directional magnet field based proximity receiver with multiple warning and machine shutdown ... |
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2000
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Invention
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Positioning cradle for mine roof supports. A cradle for placing a support in a mine. The cradle i... |
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1999
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Invention
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Mine roof support crib having only two or three planes, and method. A mine roof support crib. The... |
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1997
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Invention
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Mine ventilation structure. A mine ventilation structure used to block a passageway or to prevent... |
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1995
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Invention
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Mine support cribs. The invention is concerned with a mine support crib of the type which compris... |
