Manufacture of hollow fiber fluid fractionating cells

Claim 1

A method of making fluid fractionating cells the cores of which have a multiplicity of permeable hollow fibers contained within fluid tight casings, comprising the steps of: (a) affixing a series of longitudinal sections of fractionating cell casings to the periphery of a winding means having a central axis of rotation; (b) winding filaments of said hollow fiber over and onto said longitudinal sections on said periphery and building up a bundle thereof in each section; (c) assembling another of said longitudinal sections about said bundles in each section and forming a cell core firmly holding the fibers in place in said bundle; (d) severing the fibers between each cell core and removing the cell cores from said winding means; (e) potting said fibers at each end of a cell core by introducing a liquid potting compound thereabout and centrifugally casting the potting compound in each end in situ by rotating said cell core about a transverse axis of rotation thereof; (f) cutting the ends of the fibers at each said end in the area of said potting compound and laying open the cores thereof; and (g) placing an endcap on each end so potted to complete said cells.

Claim 2

A method of making fluid fractionating cells the cores of which have a multiplicity of permeable hollow fibers contained within fluid tight casings, comprising the steps of: (a) affixing a series of longitudinal sections of fractionating cell casings to the periphery of a winding means having a central axis of rotation; (b) winding filaments of said hollow fiber over and onto said longitudinal sections on said periphery and building up a bundle thereof in each section; (c) assembling another of said longitudinal sections about said bundles in each section and forming a cell core firmly holding the fibers in place in said bundle; (d) severing the fibers between each cell core and removing the cell cores from said winding means; (e) potting said fibers at each end of a cell core by introducing a liquid potting compound thereabout and centrifugally casting the potting compound in each end in situ by rotating said cell core about a transverse axis of rotation thereof; (f) cutting the ends of the fibers at each said end in the area of said potting compound and laying open the cores thereof; and (g) placing an endcap on each end so potted to complete said cells.

Claim 5

A method of making fluid fractionating cells which cells have a multiplicity of generally parallel laid permeable hollow fibers contained within fluid tight casings, comprising the steps of: (a) preparing a series of longitudinal sections of fractionating cell casings each section of which comprises at least two abutting relatively straight side walls of a cell; (b) affixing said series of longitudinal sections to the periphery of a winding means having a central axis of rotation with one wall of said side walls being tangential to said periphery and the other facing outwardly and with the outwardly facing side walls alternating from one side to the other from longitudinal section to longitudinal section about said periphery; (c) winding filaments of said hollow fiber over and onto said longitudinal sections on said periphery keeping said filaments within said outwardly facing side walls, and building up a bundle thereof in each said longitudinal section; (d) assembling another of said longitudinal sections over each section so filled with said hollow fiber and forming a cell core; (e) cutting the fiber bundle between each such cell core on said winding means and freeing the cell core; (f) potting said hollow fibers at each end of said cell cores by centrifugal casting a limited amount of liquid potting compound in each end in situ about said courses by spinning said cell cores about a transverse axis of revolution; (g) cutting the ends of the fibers at each said end in the area of said potting compound and laying open the cores thereof; and (h) placing an endcap on each end so potted to complete said cells.

Claim 6

A method of making fluid fractionating cells which cells have a multiplicity of generally parallel laid permeable hollow fibers contained within fluid tight casings, comprising the steps of: (a) preparing a series of longitudinal sections of fractionating cell casings each section of which comprises at least two abutting relatively straight side walls of a cell; (b) affixing said series of longitudinal sections to the periphery of a winding means having a central axis of rotation with one wall of said side walls being tangential to said periphery and the other facing outwardly and with the outwardly facing side walls alternating from one side to the other from longitudinal section to longitudinal section about said periphery; (c) winding filaments of said hollow fiber over and onto said longitudinal sections on said periphery keeping said filaments within said outwardly facing side walls, and building up a bundle thereof in each said longitudinal section; (d) assembling another of said longitudinal sections over each section so filled with said hollow fiber and forming a cell core; (e) cutting the fiber bundle between each such cell core on said winding means and freeing the cell core; (f) potting said hollow fibers at each end of said cell cores by centrifugal casting a limited amount of liquid potting compound in each end in situ about said courses by spinning said cell cores about a transverse axis of revolution; (g) cutting the ends of the fibers at each said end in the area of said potting compound and laying open the cores thereof; and (h) placing an endcap on each end so potted to complete said cells.