Dispenser mechanism
US8302820B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 2007 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Aug 24, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1001
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dispenser mechanism 1 for a foamed product comprises a liquid chamber 9 and air chamber 10, each compressed by a common actuator mechanism 6a, 6b, wherein the liquid and air simultaneously enter a foaming chamber 15. The liquid is forced through a diffuser 18a defining a plurality of distributed channels 18e, each channel 18e having a predetermined cross section such that in use the liquid is forced through the channels and enters the foaming chamber as a plurality of jets. The dispenser mechanism 1 provides a particularly advantageous arrangement for producing foam and may be arranged to prevent the foam dripping from an outlet after the end of a dispensing cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.