Metal working – Method of mechanical manufacture – With testing or indicating
Patent
1979-05-21
1981-07-07
Ball, Michael W.
Metal working
Method of mechanical manufacture
With testing or indicating
29411, 29157R, 156171, 156173, 242 18G, 242157R, B65H 5402, B65H 5428
Patent
active
042766877
ABSTRACT:
Capillary fiber bundles of semipermeable membrane material may be used by winding the fibers onto a reel member to form an annular assembly of the fibers, and thereafter cutting the annular assembly into separate bundles. In accordance with this invention, the capillary tubing is fed to the reel through guide slot means elongated in a direction generally parallel to the axis of rotation of the reel. The tension on the capillary tubing is sufficiently low to allow the capillary tubing to move about while winding in the guide slot means in generally random manner. Accordingly, the bundles comprise strands in generally non-parallel, crossing arrangement with adjacent strands. Individual bundles may be wrapped in a special flexible sheet, and cut at their ends for improved quality.
REFERENCES:
patent: 2438156 (1948-03-01), Dodge
patent: 2695141 (1954-11-01), Rassey
patent: 4070785 (1978-01-01), Hawk
patent: 4077578 (1978-03-01), Cromie et al.
Ball Michael W.
Baxter Travenol Laboratories Inc.
Ellis Garrettson
Flattery Paul C.
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