Platform shaker in three dimensional motion
US5639160A · kind A · utility
Inventor
Key dates
| Filing date | Mar 11, 1996 |
| Grant date | Jun 17, 1997 |
| Priority date | — |
| Expiry date | Mar 11, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F31/26
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A platform shaker for stirring liquid chemical compositions provides a swirling motion in three dimensions. The magnitude of the three dimensional motion can be continuously adjusted while the shaker is in operation. Additionally, the platform of the shaker returns to the horizontal orientation after stirring is halted so as to maintain liquid samples well within the container placed on the platform. The novel platform shaker is useful for various analytical procedures such as DNA extractions, hybridizations, and gel staining in genetics, biology, and molecular biology. It is particularly appropriate for DNA extractions because the tilt angle of the platform as well as the swirl rate can adjust according to characteristics of the DNA, for example, to provide for a small tilt angle and a fast swirl rate for a short chain DNA, and for a large angle and a slow swirl rate for a long chain DNA.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.