Patent ID: 7024985
Filing Date: 2006-04-11
Classification: A47J

Abstract:
1. A coffee extracting apparatus for a coffee machine, comprising: a case, a cylinder unit having a cylinder, in which coffee grinds are received; an upper piston unit having a hot water path to guide hot water toward the cylinder; a pair of first guide pins symmetrically formed on both sides of the upper piston unit and a pair of second guide pins symmetrically formed on both sides of the upper piston unit to be spaced from the first guide pins by a certain distance; and a lower piston received in the cylinder unit to be moved upward and downward, and having a discharge path to discharge coffee liquid produced by mixing coffee grinds and hot water, and wherein the case includes a pair of first guide holes to guide the first guide pins of the upper piston unit, and a pair of second guide holes to guide the second guide pins of the upper piston.