Fluent material handling – with receiver or receiver coacting mea – Processes – Battery grid pasting
Patent
1981-02-02
1983-04-19
Bell, Jr., Houston S.
Fluent material handling, with receiver or receiver coacting mea
Processes
Battery grid pasting
141392, 193 15, 248562, 425261, B65B 304, B67C 537
Patent
active
043802575
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 with the recovery cups. Hence fluid switching is attained and the flow through the separating columns is switched from the waste cups to the recovery cups.
REFERENCES:
patent: 376531 (1888-01-01), Lentz
patent: 3268199 (1966-08-01), Kordyban et al.
Bell, Jr. Houston S.
E. I. Du Pont de Nemours and Company
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