The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 1987
Filed:
Dec. 22, 1981
Clemens Neuhaus, Erlenbach, DE;
Rudiger Lucks, Obernburg, DE;
Hans G Breidohr, Wuppertal, DE;
Gerhard Wick, Obernburg, DE;
Akzo NV, Arnhem, NL;
Abstract
A cross-counter-stream module for material and/or heat exchange done with a hollow filament bundle cast into a housing at its ends and a mechanism for conducting the material flow to the outside of the hollow filaments. The hollow filaments are cast at their ends as a stack into a housing, the stack being composed of one or more layers which consist of strata of hollow filaments fixed in a plane through cross-pieces transverse to their lumen directions, the cross-pieces being arranged tightly superimposed at all locations inside one layer, disposed at predetermined constant intervals, with the intermediate spaces between the hollow filaments filled by the cross-pieces at the places of crossing, and with the cross-pieces composed of a polymer with a melting point from 80.degree. to 190.degree. C. and a residual adhesion at room temperature. Preferably, the polymer is a polyamide, a polyethylene, a copolymer of polyethylene and vinyl acetate, or a copolyether-ester. Preferred embodiments include that the cross-pieces display a substantially round cross-section; that the cross-piece diameter correspond to 1.5 to 4 times the hollow filament diameter; that the cross-pieces are put in as warp; that the stack is composed of several layers; that the intervals between adjacent cross-pieces amount to 1-20 cm; and that the cross-piece intervals in different layers form whole number ratios.