초록 ▼

An improved drainage tank assembly for a metered dispenser which includes a metering tank secured within a mounting cup, the mounting cup adapted to be secured to a container. The drainage tank includes a sealing portion which seals the interior of drainage tank from the mounting cup to prevent both

An improved drainage tank assembly for a metered dispenser which includes a metering tank secured within a mounting cup, the mounting cup adapted to be secured to a container. The drainage tank includes a sealing portion which seals the interior of drainage tank from the mounting cup to prevent both corrosion of the mounting cup and contamination of the product dispensed. The drainage tank further includes radially extending ribs which extend from an interior surface of the drainage tank toward an outside surface of the metering tank to limit axial displacement of a band seal mounted on the outside surface of the metering tank.

대표청구항 ▼

An improved dispensing valve assembly for use with a pressurized container, said valve assembly comprising; a mounting cup adapted to be secured to a container; a metering tank secured within said mounting cup, said metering tank having an outer end, an inner end, an interior surface, an outside sur

An improved dispensing valve assembly for use with a pressurized container, said valve assembly comprising; a mounting cup adapted to be secured to a container; a metering tank secured within said mounting cup, said metering tank having an outer end, an inner end, an interior surface, an outside surface and at least one radially directed opening proximate said outer end, said opening extending between the interior surface and the outside surfaces to communicate the interior of the metering tank with the exterior of the metering tank; a band seal surrounding an upper portion of said outside surface of the metering tank and resiliently covering the radially directed opening; and a drainage tank including an interior surface surrounding a lower portion of said outside surface of the metering tank and radially spaced therefrom, an exterior surface and at least one radially inwardly extending internal rib extending radially inward of said drainage tank interior surface, said interval rib having a radially innermost surface which is radially spaced from the outside surface of the metering tank, the axial extent of said rib toward said outer end being such as to limit axial displacement of said band seal such that said band seal remains over said radially directed openings.