Mixing and dispensing device
US6213633A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1999 |
| Grant date | Apr 10, 2001 |
| Priority date | — |
| Expiry date | Jun 10, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F2101/2305
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A mixing device for fluids, comprising a column within which there is an internal core, a space between the column and core defining a channel for the flow of the fluids, the surface of the column facing the core having fluid guide elements which impart helical flow in a first twist direction upon a fluid flowing along the channel, the surface of the core having fluid guide elements thereon which impart helical flow in an opposite twist direction upon the fluid. On part of the channel, the helical flow imparted to the fluid is predominantly in the twist direction of the elements on the core and on a part of the channel upstream or downstream of this part the helical flow imparted to the fluid is predominantly in the twist direction of the elements on the column.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.