Patent ID: 8689715
Filing Date: 2014-04-08
Classification: B63H

Abstract:
1. An electric linear actuator for use in controlling the movement of a component of a seagoing vessel, the actuator comprising: an actuation member adapted to be coupled to a component, the movement of which is to be controlled; and a force-generating arrangement for applying a control force to the actuation member to control the movement of the component to be controlled, wherein the actuation member is compliant when the component is subject to an opposing force exceeding a selected force threshold, the actuation member configured to retreat while still applying the control force to eliminate or at least mitigate damage to at least one of the component and the actuator resulting from the opposing force wherein the actuation member is at least partially surrounded by a stator and wherein the actuation member is adapted for linear movement in response to an electro-motive force resulting from current flow in the stator to provide the control force for manipulating the component.