Rotary centrifuge seal
US4300717A · kind A · utility
203Cited by
9References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 27, 1980 |
| Grant date | Nov 17, 1981 |
| Priority date | — |
| Expiry date | Oct 27, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04B2005/0464
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved rotary centrifuge seal is disclosed of the type formed from a rotatable ring member (40) and a non-rotatable ring member (42) having a sealing face of each in contact to provide a dynamic seal between rotatable and stationary centrifuge elements. This improved seal is provided with means for entrapping solid particulate matter generated at areas of contact (44) and means for directing entrapped particles back to the area of contact where they are ingested. This prevents contamination of fluid being processed in the centrifuge with such solid particles, which is particularly important in blood-processing centrifuges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.