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US 4,304,669 AGranted
Device for the mass transfer between fluids
AssigneeSartorius AG
InventorsErich Knothe, Gerhard Lorenz
Life of this patent
Estimating the term…
Abstract
A device for mass transfer between fluids through a diaphragm unit comprising a pair of diaphragms with a diaphragm support therebetween, in which the diaphragm unit is a pleated package supported in a case, with the pleats and support defining a plurality of separate flow paths, and the diaphragm unit is shaped in a direction transverse to the longitudinal axis of the pleats with a zig zag or sine-wave shape, so that a compound zig zag or sine-wave shape results for the unit.
Claims8
A device for mass transfer between fluids, comprising:
- a box-like case with inlets and outlets for the fluids:
- a diaphragm unit consisting of two semipermeable diaphragms and an intermediary diaphragm support provided with flow channels, which diaphragm unit is pleated to a folded package and placed in the box-like case in such a manner that pleats are formed in the diaphragm unit and the enclosed diaphragm support form several separate parallel flow paths, distribution channels arranged around the edges of the pleats of the diaphragm unit, which distribution channels serve as inlets and outlets for fluids conveyed in the pleats, the pleats being open in the direction of the distribution channels;
- the diaphragm support presenting a zig-zag-wave shaped sine-wave shaped cross section structure extending transversely to the parallel flow paths, and having wave crests and wave troughs;
- and
- wave backs and wave grooves of the pleated structure extending in the direction of the parallel flow paths to present a zig zag shaped to sine-wave shaped displacement transverse to the parallel flow paths.
2 more elements
Dependencies are inferred from the claim text.