75804873
Sep 21, 1999
Apr 9, 2002
Commercial material handling systems in the nature of automated electric railway and monorail systems, consisting primarily of load-carrying rail vehicles which contain on-board magnets; running surfaces or guideways which contain linear motors with metal coil windings; switches; transducers which send signals from load-carrying rail vehicles to coil windings; and block and central controllers which organize and optimize traffic and transport control
Machinery