Patent ID: 7044337

Claim:
An unclogging device comprising: a can having a nozzle extending from a base on an end surface of the can; a support member mounted to the can and having a peripheral wall which includes two first notch and two second notches defined in a top edge thereof, a separation plate transversely connected to an inner periphery of the peripheral wall, a depth of each of the second notches being deeper than that of each of the first notches, a central hole defined through the separation plate and the nozzle extending through the central hole, and a cap having an open top and an end plate connected to an inner periphery of the open top, an outer wall connected to a top edge of the inner periphery of the open top so as to define an annular gap between the inner periphery of the open top and the outer wall, the peripheral wall of the support being inserted into the annular gap, a tubular portion extending from an underside of the end plate and a passage defined through the tubular portion, an enlarged chamber defined in an inner periphery of the passage and the nozzle engaged with the enlarged chamber, two flexible portions split from the outer wall and each flexible portion including a first protrusion extending radially from the flexible portion, the two first protrusions alternatively engaged with the first and second notches by pressing the first protrusions inward to disengage from the first notches and then rotating the support member relative to the cap to engage the first protrusions with the second notches.