Dispenser and refill unit and dispensing methods
US9504360B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 6, 2013 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Mar 23, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/9029
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A dispenser having a base unit with an actuation mechanism for dispensing liquid and a refill unit insertable into the base in an inverted configuration with its outlet lowermost to supply liquid to the base. The refill comprises an annular wall projecting into the base and defining an outlet from the refill. The annular wall is closable by a valve element. The base comprises a hollow spigot and an annular seal surrounding and spaced from the spigot whereby insertion of the refill into the base causes the spigot to enter the annular wall and lift the valve element from the annular wall to define a flow path from the refill to the spigot. The base also comprises a proximity sensor and an inclination sensor each of which may independently or jointly trigger the actuation mechanism causing the device to operate to deliver one or more doses of liquid from the dispenser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.