Movable fluid dispenser with air bubble detectors for controlling dispenser movement

An apparatus for dispensing a fluid comprising:

• a source of fluid;
• conduit means in flow communication with the fluid soruce;
• means for moving the fluid from the source through the conduit means;
• dispensing means having a fluid discharge associated with the conduit means for controlling the dispensing of fluid from the conduit means;
• means for moving the dispensing means along a predetermined path;
• first means for sensing the presence of a gas bubble included in the fluid moving through the conduit means upstream of the dispensing means, the first sensing means being operatively associated with the dispensing means moving means for slowing the movement of the dispensing means when an included gas bubble is sensed by the first sensing means;
• and,
• second sensing means for sensing the presence of a gas bubble included in the fluid moving in the dispensing means upstream of the fluid discharge of the dispensing means, the second sensing means being operatively associated with the dispensing means moving means for stopping the movement of the dispensing means when an included gas bubble is sensed by the second sensing means.