Replaceable reservoir for liquid dispenser
US6691893B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 13, 2001 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | Nov 8, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47K5/1211
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A liquid soap reservoir in which the liquid soap is expelled from the reservoir due to pressure exerted on its contents by a second, low viscosity pressurized fluid, with the associated pumping mechanism being removed from the soap path and acting only on the second fluid. The reservoir comprises a first closed container having an inlet in fluid communication with the pumping mechanism for selectively admitting the second fluid into the first container. A second collapsible closed container is disposed within the first container for containing the liquid soap and has an outlet in fluid communication with the outlet of the dispenser. Accordingly, when the second fluid, under pressure from the pump, is admitted into the first container, pressure is exerted on the second container to partially collapse the second container and expel a quantity of the liquid soap from the second container out through the outlet of the dispenser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.