Systems and methods for implementing control linkages that may be employed
to produce synchronous motion in two adjacent controlled devices
controlled by a common input. In one example implementation, a semi-rigid
modified constant velocity (CV) joint control linkage may be provided
that is laterally self-stabilizing. The modified constant velocity CV
joint control linkage may include an input push rod assembly that is
self-aligning, deflectable and of an adjustable length. The CV joint may
be configured with a central cage that is allowed to skew to allow for
alignment of the controlled devices.