Patent ID: 8177968

Claim:
A filter cup assembly comprising: a first cup having a first locking portion at an underside thereof and a one-way valve connected to a center of the underside of the first cup, a second locking portion located at an open top of the first cup; a second cup having a third locking portion at an open top thereof; a lid having a fourth locking portion; a filtering part having filtering material received therein and a connection portion extending from a top thereof, a fifth locking portion located at an underside of the filtering part; an adaptor having a sixth locking portion at a lower end thereof and a seventh locking portion located at a top thereof, the seventh locking portion connected with the fifth locking portion; the adaptor connected to the second cup by connecting the sixth locking portion to the third locking portion to connect the filtering part, the adaptor and the second cup, the one-way valve of the first cup connected to the connection portion of the filtering part, and a presser connected with the first cup via the open top of the first cup and comprising a rod, an upper pressing plate and a bottom pressing plate, the rod threadedly connected with a tubular portion of the upper pressing plate, the bottom pressing plate having a protrusion which is axially and movably located in the tubular portion of the upper pressing plate from an underside of the tubular portion, a seal ring connected to an underside of the upper pressing plate, the protrusion including a flange which restricts the protrusion from being disengaged from the tubular portion, the upper pressing plate having first through holes defined therethrough and the bottom pressing plate having second through holes defined therethrough, the second through holes located corresponding to the seal ring on the underside of the upper pressing plate, a gap defined between the first cup, the upper pressing plate, the bottom pressing plate.