Patent ID: 7287504
Filing Date: 2007-10-30
Classification: F02B,Y02T

Abstract:
1. An actuator comprising: an operator for moving an actuating member in one direction to move an actuated member to one travel limit and in an opposite direction to move the actuated member to an opposite travel limit; and an over-center spring mechanism for imparting to the actuating member a spring pre-load force that, with the actuated member at the one travel limit, forces the actuated member in the one direction against a limit stop that defines the one travel limit; wherein the operator comprises a solenoid that when energized by an electric pulse with the actuated member at the opposite travel limit moves the actuating member in the one direction to move the actuated member to the one travel limit, and that when energized by an electric pulse with the actuated member at the one travel limit moves the actuating member in the opposite direction to move the actuated member to the opposite travel limit.