Patent ID: 8453530

Claim:
A linear actuator device comprising: a housing having a center axis; an internally threaded extended nut located within the housing and having the center axis, wherein the internally threaded extended nut is configured to rotate within the housing around the center axis; an electric motor located within the housing, wherein the electric motor includes a motor element, a stator, a rotor, a first set of magnets, a second set of magnets, and coils, wherein the motor element is attached to an interior of the housing, wherein the stator extends from the motor element in direction of the center axis, wherein the coils are wrapped around the stator, wherein the stator and the coils extend along a portion of the internally threaded extended nut, wherein neither the stator nor the coils are in communication with the internally threaded extended nut, wherein the rotor is connected to an exterior of the internally threaded extended nut and is configured to rotate along with the internally threaded extended nut, wherein the first set of magnets are connected to the rotor, and wherein the second set of magnets are attached to the internally threaded extended nut; and an externally threaded screw configured to engage with the internally threaded extended nut.