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Medo Air Pump's linear-motor-driven free piston system (Pat.) has an
internal piston inside the cylinder which is driven by an
electro-magnet and spring system controlled by the alternating input
current cycle. The piston thus forms a single combined structure of
two usually different devices; motor and pump.
The system is quiet and vibration free, and offers the advantages of
easy maintenance and a long operating life. |
