Foam dispensing assembly
US9868128B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2013 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | May 11, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1001
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dispensing assembly to dispense a foam, having: a liquid pump having a liquid inlet (15) and a liquid outlet (16), an air pump having an air inlet (26) and an air outlet (27), a mixing chamber (29), wherein the air outlet and the liquid outlet are in fluid communication with the mixing chamber, a dispensing channel (30). A first end of the dispensing channel is in fluid communication with the mixing chamber (29) and the second end forms a dispensing opening (31) for dispensing of foam. The dispensing channel (30) and the mixing chamber (29) are connected to each other via a constriction. The constriction is formed by an opening having a cross section which decreases towards the dispensing channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.