US 11,745,196 B2
Dispenser
Paul Syson, Derbyshire (GB); Neil Simpson, Tonypandy (GB); James Tucker, Camberley (GB); and Karen Rossington, Thame (GB)
Assigned to ECOLAB USA INC., St. Paul, MN (US)
Filed by ECOLAB USA INC., St. Paul, MN (US)
Filed on Nov. 2, 2021, as Appl. No. 17/517,486.
Application 17/517,486 is a continuation of application No. 16/734,917, filed on Jan. 6, 2020, granted, now 11,192,129.
Application 16/734,917 is a continuation of application No. 15/477,875, filed on Apr. 3, 2017, granted, now 10,556,247, issued on Feb. 11, 2020.
Application 15/477,875 is a continuation of application No. 14/939,810, filed on Nov. 12, 2015, granted, now 9,649,648, issued on May 16, 2017.
Application 14/939,810 is a continuation of application No. 13/502,954, granted, now 9,211,557, issued on Dec. 15, 2015, previously published as PCT/GB2010/051761, filed on Oct. 19, 2010.
Claims priority of application No. 0918296 (GB), filed on Oct. 19, 2009.
Prior Publication US 2022/0055050 A1, Feb. 24, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B05B 11/00 (2023.01); B05B 11/02 (2023.01); B05B 11/10 (2023.01); A61L 2/08 (2006.01)
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
OG exemplary drawing
 
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.