A - Human Necessities – 47 – J
Patent
A - Human Necessities
47
J
65/15
A47J 31/41 (2006.01) A47J 31/40 (2006.01) A47J 31/42 (2006.01)
Patent
CA 1280616
A B S T R A C T Automatic machine for preparing espresso coffee The machine includes a motor-driven conveyor screw provided in a supply duct connecting the coffee grinder to a percolation chamber to move the ground coffee at a rate higher than that of its supply from the coffee grinder. Preferably the percolation chamber has an associate prechamber into which the supply duct opens. Means for closing the percolation chamber and compressing the charge of coffee comprise a tamper which is reciproca- ble between a withdrawn position in which it does not occupy the prechamber and closes its side opposite the percolation chamber and an advanced position of com- pressing the charge in the chamber and sealing the chamber. The percolation chamber is a through-chamber with open ends, one being a continuation of the through-chamber and the other, as part of the means for closing the chamber, being associated with a counter-tamper obturator movable towards and away from an advanced position in which it closes the other end both to allow the compression of the charge of ground coffee in the chamber by means of the tamper and to seal the chamber. The tamper is movable to an even further advanced position beyond the said other end of the chamber to expel the compressed coffee. (Figure 4)
517907
Macrae & Co.
Piana Giuseppe S.
LandOfFree
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