Fluid dispenser with shuttling mixing chamber
US6868990B2 · kind B2 · utility
14Cited by
47References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2002 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | Dec 21, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B7/0037
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates generally to a foam dispenser having a reservoir, a housing, and a chamber. The reservoir delivers fluid to the housing and the chamber through a dip-tube. The chamber moves within the housing in response to fluid pressure or air pressure from the reservoir, allowing air and foamable liquid to enter the chamber. Foam-producing packing material inside the chamber causes the air and foamable liquid to mix and produce foam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.