This development relates to manually operated levers which can be actuated in either direction from center with common arm motion inputs and with hand squeeze inputs, either alone or in combination with each other at the operator's option.
Where two input forms are combined into a single output, larger capacity valves are manually stroked with considerably reduced actuation forces and with firmer feathering control for all valve sizes. Where inputs are each directed to separate outputs the development provides a single hand, single axis dual function electro-proportional control with provisions for adding additional functions from one arm/hand member.
