Patent ID: 9165734
Filing Date: 2015-10-20
Classification: F03G,H01H,Y10T

Abstract:
1. An actuator device comprising: an actuator body including an elongate first portion and a second portion; and at least one electrical heater device embedded in said first portion and including at least one first electrically conductive element extending at least partially along said first portion and having first and second conductive limbs connected to each other adjacent respective first ends thereof and adapted to conduct electrical current between respective second ends thereof, wherein flow of electrical current in at least one said electrical heater device in use heats said first portion such that thermal expansion of said first portion causes said first portion to increase in length more than said second portion, and said first portion and said second portion are joined together adjacent at least respective first ends thereof such that thermal expansion of said first portion causes flexing of said actuator body towards said second portion.