Drive wheel equipped with power spring

Driving apparatus for an energy accumulator of a circuit breaker

Driving device for a moving body

Driving mechanism, and vehicle therewith

Easy opening door control device

Elastic energy storage device

Elastic energy storing device

Elastic motor having time-averaged constant torque output

Elastic motor with constant torque output

Electric actuators

Electro-mechanical pivot wing drive for pivoting wings of doors

Energy accumulator

Energy recovery device

Energy storage apparatus

Fail safe valve actuator

Fail-safe mechanical drive for syringe

Fast-winding spring motor

Flash memory including means of checking memory cell...

Flat spool elastic motor having time-averaged constant...

Flat torque rate drive system