US Patent 9272171 Pivoting fluid conduit sequencing mechanism

A new firefighting monitor has multiple pivoting conduit segments and a synchronization mechanism with engaging faces that automatically restrain pivoting of an intermediate conduit segment with respect to an upstream conduit segment when the downstream conduit segment is pivotable with respect to the intermediate conduit segment, and automatically restrain pivoting of the downstream conduit segment with respect to the intermediate conduit segment when the intermediate conduit segment is pivotable with respect to the upstream conduit segment. In a variation, an intermeshed gear train causes a downstream conduit segment to pivot proportionately with respect to an intermediate conduit segment as the intermediate conduit segment pivots with respect to the upstream conduit segment.