Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1976-02-13
1978-03-07
Petrakes, John
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 43R, B65H 5402, B65H 5428
Patent
active
040775780
ABSTRACT:
There is disclosed herein an apparatus and method for preparing a continuous, hollow, and semipermeable filament for use in a dialyzer which includes a plurality of substantially-equal-length open-ended fibers.
The apparatus includes a body having a supply spool of filament and a take-up reel having at least two radially-spaced support means about which the filament is wound. Drive means rotate the take-up reel and a filament guide is provided for laterally positioning the filament on the support member so as to prevent close packing of the filament windings. The take-up reel includes a winding plate for carrying the filament support means and a hub-and-locking means for releasably mounting the winding plate on the machine.
The method includes winding the filament from the spool onto the take-up reel; grasping each of the sections of filament between the support means; and cutting the filament adjacent the support means so as to form a plurality of bundles of open-ended fibers for use in a hollow fiber dialyzer.
REFERENCES:
patent: 514884 (1894-02-01), Foster
patent: 883116 (1908-03-01), Mitchell
patent: 2256858 (1941-09-01), Bochmann
patent: 2296319 (1942-09-01), Von Kohorn
patent: 2475895 (1949-07-01), Hill
patent: 2629560 (1953-02-01), Abbe
patent: 2663508 (1953-12-01), Boily
patent: 2664249 (1953-12-01), Wright
patent: 2869797 (1959-01-01), Clerc
patent: 3069745 (1962-12-01), Schippers
patent: 3640477 (1972-02-01), Furst
Cromie Harry W.
Fitzgerald James A.
Kopp Clinton V.
Washington Freddie L.
Baxter Travenol Laboratories Inc.
Flattery Paul C.
Geren Gerald S.
Petrakes John
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