Class 212/171 - Traveling bridge

Subclass of Class 212 - Traversing hoists
Definition: Apparatus comprising a bridge* supported above
No. of patents: 2
Last issue date: 03/13/2007

Number	Title	Issue Date
7190146	Control system and method for an overhead bridge crane Included herein is a system and method for controlling a velocity vector of an overhead crane. A motor is attached to the crane and is positioned to move the overhead crane and has an output vector including a rotational direction and a rotational speed. A variable ...	03/13/2007
4706570	Crane with anti-skewing device A crane with an anti-skewing device comprising a platform suspended under a bridge deck by two end truck assemblies supported by runways on a bridge. Each end truck assembly includes two sets of trolleys and an upper load bar interconnects the two sets of...	11/17/1987

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