Woodward, Inc.
TRAVELING FINGER LOCK FOR AN ACTUATOR

Abstract:

The subject matter of this specification can be embodied in, among other things, a linear actuator lock apparatus, including a housing having an inner surface defining an axial cavity including a first housing portion where the axial cavity has a first lateral size, a second housing portion where the axial cavity has a second lateral size that is larger than the first lateral size, and a face from the first housing portion to the second housing portion, a piston configured for axial movement within the axial cavity, a lock finger affixed to and extending away from the piston, where a finger end is configured to contact the face when extended and fit within the first housing portion when retracted, and a sleeve configured to move between a position in which the lock finger is permitted to extend and a position configured to contact and retract the lock finger.