Battery operated molten metal pump

A pump for transferring molten metal from a vessel, the system comprising:

• (a) a stationary intake tube, the stationary intake tube comprising (i) a cavity having a diameter, and being configured to direct molten metal upward through the inner cavity, (ii) a first end configured to be at least partially submerged in the molten metal in the vessel, and (iii) a second end;
• (b) a DC motor juxtaposed the second end;
• (c) a rotatable drive shaft positioned at least partially within the cavity of the stationary intake tube, the rotatable drive shaft having a first end connected to the motor and a second end;
• (d) a rotor positioned at least partially in the cavity at the first end of the stationary intake tube;
• (e) an overflow conduit coupled to the stationary intake tube above the rotor, the overflow conduit for directing molten metal out of the stationary intake tube;
• and (f) a transportable cart including a battery power source for activating the motor, a control panel for operating the pump, and an integral battery charger, and a source of compressed air;
• said pump further including a housing surrounding a coupling between the motor and the rotatable drive shaft, said housing including a quick connect inlet for compressed air.