Patent ID: 8978497
Filing Date: 2015-03-17
Classification: F16H,Y10T

Abstract:
1. A linear actuator assembly comprising: a housing; a motor disposed within the housing, the motor comprising a hollow rotor positioned radially inward of the housing in a proximal end thereof; an externally threaded screw shaft coupled to the hollow rotor for rotation therewith; and a thrust tube coupled to an internally threaded nut positioned radially inward of the hollow rotor and in a proximal end of the thrust tube, the nut having an internally threaded portion mating with the externally threaded screw shaft, wherein rotation of the hollow rotor and screw shaft causes the internally threaded nut and thrust tube to move axially along the screw shaft; and an anti-rotation mechanism attached to a circumference of the thrust tube in a distal end of the actuator housing and in a distal direction from the nut, the anti-rotation mechanism configured to substantially prevent rotation of the thrust tube relative to the housing.