Foam liquid dispensing device

Abstract

A foam liquid dispensing device which mixes liquid capable of foaming and air together and dispenses the mixture as aerosol. The dispensing device comprises a container and a cap detachably attached to the container. The cap includes an outer cover and an inner cover. The outer cover includes a frusto-conical upper portion provided on the top with a jet nozzle. The inner cover includes an inner cylindrical portion having a frusto-conical portion extending upwardly therefrom and provided with a discharge port and a plug at the upper end of the frusto-conical portion, with the frusto-conical portion and plug defining a flow passage in cooperation with the frusto-conical portion of the outer cover. An inverted cylindrical porous member is disposed within the inner cover and has a mixing chamber therein and is provided with an outlet at the top. A check valve is disposed within the mixing chamber below the outlet. A tubular support member is received in the mixing chamber and a pipe is disposed between the container and tubular support member whereby one fluid from the container flows through the interior of the tubular member into the mixing chamber and the other fluid from the container flows through a side flow path defined between the annular support member and is cylindrical skirt of the inner cover and pores in the porous member into the mixing chamber to mix with the one fluid therein. When the container is compressed, the check valve clogs the outlet and the air and liquid mixture flows through the porous member to form an aerosol which flows through the jet nozzle.