US Patent 11372440 Single axis joystick

A joystick with a first casing that has a piece of a sensor/effector pair. A second section is attached to the first casing, where at least one of the first and second casings form a void within the first and second casings. A puck with a cylindrical shape is disposed within the void, where the puck has a piece of the sensor/effector pair. A shaft is connected to the puck, with a distal end free to move, thereby rotating the puck. The shaft passes through a void between the first and second casings, and as the shaft is moved and the puck rotates, an interaction between the pieces of the sensor/effector pair produces a signal indicating a degree of movement of the shaft.