Filter for centrifuge tube
US4683058A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1986 |
| Grant date | Jul 28, 1987 |
| Priority date | — |
| Expiry date | Mar 20, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/285
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter for a centrifuge tube including a pressure filter for separating a mixture under centrifugal force. The filter tube is adapted to fit within the upper portion of a standard plastic centrifuge tube. The filter tube has a pressure filter at its lower end and an opening at its upper end adapted to be sealed by a cap extending from the centrifuge tube to hold the filter tube securely in position within the centrifuge tube. The filter tube is filled with a mixture of permeable and non-permeable materials and when the composite centrifuge tube and filter tube is spun in the centrifuge, the centrifugal force causes the permeable materials to flow through the filter and collect in the bottom of the centrifuge tube while the non-permeable materials are retained in the filter tube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.