The third carriage carries a pusher bar.

At least one drive bar at least partially received in the housing and is connected to the drive bar connection element.

The mid-drive mechanism is connected to the accelerator and the brake respectively by two cams on the rotating shaft, an accelerator and a brake drive rod.

A proximal end (14) of the drive bar (12) of the drive instrument is adapted to be coupled to a vibratory element (16) which, thereby, is able to generate longitudinal high frequency vibrations in the drive bar (12).

An exercise apparatus comprising a rigid movable booster bar having two flexible elastic elements attached to the booster with an attachment.

The drive bar is actuated by an actuator located remote from the housing.

The position is modified using a threaded connection, a driving and measuring rod, and a cap including a drive aperture that is adapted thereto.

The attachments are spaced from each other and configured to allow winding the elastic element upon the booster bar by rotating the booster bar.

A vacuum suction pipe (210) is housed in the drive bar.

A reciprocating floor includes at least one drive beam operable to move in a reciprocating fashion with a plurality of floor slats (14) mounted to the drive beam.

A tool for removing and installing serpentine belts in vehicles has a drive bar, a double box end wrench and a socket.

The drive motor has an axis of rotation (21) and a drive bar (50) eccentrically offset from the axis of rotation (21).

The linear drive means include a motor and a capstan driven by the motor and a drivebar frictionally engaging the capstan.

A knife is operably coupled to a distal end of the drive rod.

Guide wheels may receive the tracks to support and align the drive bar.