Centrifuge
US4822331A · kind A · utility
Inventor
Key dates
| Filing date | Nov 9, 1987 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Nov 9, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04B2007/025
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A centrifuge, including a motor assembly with a low-speed brushless induction motor connected to the spindle assembly and controlled by an electrical circuit for gently shifting phases of operation but with rapid acceleration and deceleration, the centrifuge rotor for use on the spindle assembly having interlocks with the electrical circuit and being completely enclosed for safety, the resulting motor mechanism and rotor being comparatively quiet in operation, the motor and spindle assemblies being capable of use with rotating devices and loads other than centrifuges and the centrifuge rotor being capable of holding various insertable tube carriers to provide operation with wide variety of test samples while also being substantially free of corrosion from sample spillage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.