Air core gaugeW
Air core gauge
Ball screwW
Ball screw
Linear actuatorW
Linear actuator
Comb driveW
Comb drive
Helical band actuatorW
Helical band actuator
Hoist (device)W
Hoist (device)
Hydraulic cylinderW
Hydraulic cylinder
JackscrewW
Jackscrew
Linear actuatorW
Linear actuator
Plasma actuatorW
Plasma actuator
Rack and pinionW
Rack and pinion
Rigid belt actuatorW
Rigid belt actuator
Rigid chain actuatorW
Rigid chain actuator
Roller screwW
Roller screw
Rotary actuatorW
Rotary actuator
Scratch drive actuatorW
Scratch drive actuator
Serpentine geometry plasma actuatorW
Serpentine geometry plasma actuator
Servo (radio control)W
Servo (radio control)
ServomotorW
Servomotor
SolenoidW
Solenoid
Stepper motorW
Stepper motor
Telescopic cylinderW
Telescopic cylinder
Valve actuatorW
Valve actuator
Wig wag (washing machines)W
Wig wag (washing machines)
File:Spiralift Patent.jpgW
File:Spiralift Patent.jpg