Methods of transporting fluids within an analytical rotor
US5693233A · kind A · utility
166Cited by
26References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 4, 1995 |
| Grant date | Dec 2, 1997 |
| Priority date | — |
| Expiry date | Dec 4, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/111666
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides an analytical rotor which holds a fluid in a chamber, typically to allow mixing with a reagent, and transfers the fluid to a receiving chamber in the rotor. The rotor comprises a holding chamber having an single exit duct and a receiving chamber connected to the holding chamber through the exit duct. The exit duct prevents flow at a first rotational speed and allows flow at a second, higher rotational speed. The exit duct may include a capillary passage in which capillary forces prevent flow until the rotational speed is increased. Alternatively, the exit duct may include a siphon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.