Automatic coffee machines

Details Automatic coffee machines Automatic coffee machines

A - Human Necessities

47

J

65/9

A47J 31/00 (2006.01) A47J 31/40 (2006.01)

Patent

CA 1124536

ABSTRACT OF THE DISCLOSURE : An automatic coffee machine comprising a stationary cylinder wherein the coffee infusion is made; a lower piston vertically reciprocable within said cylinder between a coffee making lower position and an exhausted coffee dreg discharging upper position in line with the upper edge of said cylinder; an upper piston vertically reciprocable between a coffee making lower position within said cylinder and an upper position outside said cylinder, said upper piston being shiftable, in its upper position, from its alignment with said cylinder, in order to leave a coffee powder dose feeding funnel to be aligned with said cylinder; hot water feeding means into said cylinder between said pistons when in their coffee making positions; means for collecting the coffee infusion as obtained by passage of said hot water through said powdered coffee dose; and means for mechanically and sequentially controlling said piston motions and hot water feeding means. For controlling the motions of upper piston and funnel, a double a lever system effects a lifting of said upper piston and then an oscillation thereof, together with the funnel, around an horizontal axis in order to alternately axially align said upper piston and said funnel with the cylinder.

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