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A wet/dry cannister-type vacuum cleaner is provided with a plastic grid unit that includes a spherical cup-like main section, an upper annular mounting lip, a short tubular support disposed within the main section with the lower end of the support surrounding a central inlet opening in the latter, a

A wet/dry cannister-type vacuum cleaner is provided with a plastic grid unit that includes a spherical cup-like main section, an upper annular mounting lip, a short tubular support disposed within the main section with the lower end of the support surrounding a central inlet opening in the latter, and a grid extending across the support at the top thereof and disposed below the mounting lip. The lower end of the support constitutes a seat for a floating ball valve element. An axially extending slot in the support provides a drain for liquid that may be accumulated by the main section at the interior thereof.

대표청구항 ▼

A wet/dry vacuum cleaner including: an accumulating tank having a closed bottom and an open top, and a removably assembly for closing that open top; said assembly including suction blower means for generating a stream of working air that extends through said tank, said blower having an inlet opening

A wet/dry vacuum cleaner including: an accumulating tank having a closed bottom and an open top, and a removably assembly for closing that open top; said assembly including suction blower means for generating a stream of working air that extends through said tank, said blower having an inlet opening through which said stream flows, and automatic valve means disposed downstream of said opening to prevent liquid that is picked up by said cleaner and accumulated in said tank from rising to said opening; said valve means including a float and a member defining an annular seat against which said float seals from below when water in said tank reaches a predetermined level below said opening; said member including a mounting portion, and a main portion having an aperture where said seat is disposed; and said main portion including a wall that slopes inwardly and downwardly from said mounting portion to said aperture whereby the latter is disposed substantially below said inlet opening of said blower means.