Joy Mining Machinery

Joy is in a unique position to provide comments on this subject as we have been involved with Proximity Detection since the initial research project conducted in 2002 as documented in the Background information of this Information Request. In addition we have been involved to some level with each Proximity Detection manufacturer on every generation of design because of the interface to our continuous miner models. Throughout the installations of various generations of systems from the manufacturers, Joy has devoted multiple employees to work with the manufacturers and coal operators to attempt to obtain a working system capable of accurate information which is able to survive the rigors of the mining environment. In addition, Joy has reviewed each manufacturer's system over the past eight years to determine if their Proximity Detection System (PDS) warranted Joy involvement to further develop the system into a commercially viable product to use as a training tool for the operators.