Dispenser
AssigneeEcolab USA Inc.
InventorsPaul SYSON, Neil SIMPSON, James TUCKER, Karen ROSSINGTON
Life of this patent
Estimating the term…
Abstract
A spray dispenser is provided, the spray dispenser comprising a container for holding a liquid to be dispensed and a dispensing assembly for extracting liquid from said container, the dispensing assembly comprising a pressure-relief valve for release of excessive pressure in the container and a filter arranged to permit egress of gas through the filter, inhibit egress of liquid from the container and to inhibit ingress of contaminants into the container through the pressure relief valve. A dispensing assembly for use is a spray dispenser is also provided.
Claims34
A dispenser comprising a container for holding a liquid to be dispensed and a dispensing assembly for extracting liquid from said container, the dispensing assembly comprising a pressure-relief valve for release of excessive pressure in the container and a filter arranged to permit egress of gas from the container through the filter and through the pressure-relief valve, the filter inhibiting egress of liquid from the container through the filter, the pressure-relief valve being closed in the absence of excessive pressure to inhibit ingress of air and contaminants into the container
A dispensing assembly for use in a spray dispenser to dispense liquid from a container, the dispensing assembly comprising a pressure-relief valve for release of excessive pressure in a container to which the dispensing assembly is fitted and a filter arranged to permit egress of gas from the container through the filter and through the pressure-relief valve, the filter inhibiting egress of liquid from a container to which the dispensing assembly is fitted, the pressure-relief valve being closed in the absence of excessive pressure in a container to which the dispensing assembly is fitted so as to inhibit ingress and air and contaminants into a container to which the dispensing assembly is fitted.
Dependencies are inferred from the claim text.