Abstract: A hybrid linear actuator features a central load shaft on which a plurality of solid-state magnetostrictive thrusters are positioned in operative relation to electric motors of a permanent magnet synchronous type to impart linear thrust force to the load shaft through clutch units also positioned thereon and under control of force and stroke amplification of output force from motor shafts projecting from the motors.

Abstract: This invention relates to a device for converting physiologically derived energy to electric energy while walking in a form a low profile pneumatic electric power generator that is adapted for integration in a midsole of a shoe, to generate power as the wearer walks. The pneumatic electric generator in one embodiment, comprise a stator in a form of a closed loop passageway with inlet ports for compressed air and outlet ports for the exhaust. The generator rotor consists of plurality of freely movable, mechanically unrestrained but magnetically coupled segments. The pneumatic generator is based on reciprocating air hammer action. Also a pneumatic oscillator, consisting of a shuttle valve, pinholes, and two air chambers of different volumes, which is used create a pulsating compressed airflow for the reciprocating air hammer action is described.