CPC B05B 11/0044 (2018.08) [B05B 11/0037 (2013.01); B05B 11/0039 (2018.08); B05B 11/00442 (2018.08); B05B 11/026 (2023.01); B05B 11/1042 (2023.01); B05B 11/1052 (2023.01); A61L 2/081 (2013.01); A61L 2202/23 (2013.01); B05B 11/1011 (2023.01)] | 34 Claims |
1. 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.
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