초록 ▼

The foam dispensing device is intended for use in the inverted position and includes a container having a reservoir portion for holding a foamable liquid and a bellows portion for holding air. A foam producing unit is mounted in the discharge port, the foam producing unit including a housing mounted

The foam dispensing device is intended for use in the inverted position and includes a container having a reservoir portion for holding a foamable liquid and a bellows portion for holding air. A foam producing unit is mounted in the discharge port, the foam producing unit including a housing mounted in and receiving air from the bellows and a liquid receiving conduit extending from the foam producing unit into the reservoir. A separate air return conduit communicating with atmosphere extends into the container air. The container reservoir and bellows portions are separated by a finger-engageable waist portion to facilitate operation of the bellows portion.

대표청구항 ▼

A foam dispensing device for use in an inverted condition, comprising: (a) an hour glass-shaped one piece container for holding foamable liquid and air having a discharge port, a reservoir portion disposed at one end of the container adjacent the discharge port, a bellows portion disposed at the oth

A foam dispensing device for use in an inverted condition, comprising: (a) an hour glass-shaped one piece container for holding foamable liquid and air having a discharge port, a reservoir portion disposed at one end of the container adjacent the discharge port, a bellows portion disposed at the other end of the container remote from the discharge port and a necked-down finger engageable portion centrally disposed between said bellows portion and said reservoir portion, said central finger engageable portion being substantially reduced in its transverse area when compared to the reservoir portion and the bellows portion, (b) means associated with the container having air inlet passage means and foam outlet passage means, whereby air is selectively admitted into the interior of the device and foam is selectively extruded from the interior of the device, (b1) means communicating with the reservoir portion and the bellows portion, (c) foam producing means associated with the container and said means communicating with the reservoir portion and the bellows portion, (d) means communicating between the foam producing means and the foam outlet means, (e) means communicating between the air inlet means and the container air space, and (f) valve means closing the air inlet means when pressure is applied to the bellows portion and opening the air return means when pressure applied to the bellows portion is relieved.