Method and apparatus for processing fluid materials
US4380257A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 2, 1981 |
| Grant date | Apr 19, 1983 |
| Priority date | — |
| Expiry date | Feb 2, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N30/6091
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Samples of body fluids such as blood, urine, etc. are passed for analysis through separating columns to extract the desired component from the raw sample. Unwanted ingredients of the sample flow through the resin bed to a refuse cup. The retained desired component is later released from the resin bed by a solvent and collected in a recovery cup. Fluids passing through the resin bed are selectively passed to the refuse cup or recovery cup by flexing a disklike support for the resin bed. Preferably the support is flexed by applying a differential gas pressure across the support. An apparatus for implementing this method includes in a flexible disk, adapted to hold separating columns, suspended across an opening of a vacuum chamber. The outside edges of the disk form a seal for the chamber. The separating columns are in vertical alignment with waste receptacles disposed in a second disk positioned below the first disk. Differential pressures established across the flexible disk cause fluids to flow through the columns and, when sufficient differential pressure is applied, the disk flexes. When the disk flexes, the lower tips of the separating columns extend outward radially to align w…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.