Automatic coffee machine

An automatic coffee machine for the preparation of individual cups and small pots of coffee, comprising:

• a housing;
• a flow heater supported in said housing;
• a percolator, said percolator further comprising:
• a stationary tube section having an upper and a lower end, said tube section forming a percolating chamber around an axis;
• an upper stopper, wherein said stopper is sealingly received within the upper end of said tube section;
• and
• a lower stopper, wherein said stopper is slidably and sealingly supported within said tube section;
• wherein said percolator is at least partially disposed within said housing and at least part of said tube section is surrounded by hot water heated by said flow heater;
• means for feeding coffee powder into said percolator;
• a pivot arm, said pivot arm further comprising:
• a fixed position bearing mounted upon said housing, said pivot arm being connected to said bearing;
• means for rotating the pivot arm about said bearing, whereby said pivot arm is rotated into parked and standby positions with respect to said tube section axis;
• upper stopper axial drive means mounted upon said pivot arm for moving said upper stopper toward and away from the upper end of said tube section;
• lower stopper vertical drive means for moving said lower stopper along the axis within said tube section;
• and wherein said upper stopper is constructed as an integrated assembly and is driven by said upper stopper axial drive means into said tube section for being sealingly received within said tube section.