Apparatus for producing needled, non-woven tubing

Details Apparatus for producing needled, non-woven tubing Apparatus for producing needled, non-woven tubing

1977-09-21

1979-02-13

Mackey, Robert

Textiles: manufacturing

Textile product fabrication or treatment

Fiber entangling and interlocking

D04H 126

Patent

active

041387724

ABSTRACT:
An apparatus for continuously producing needled, non-woven tubing by winding a web on a stationary mandrel, multi-needling overlying turns and frictionally driving the formed tube about the periphery of the mandrel. The mandrel is tapered to accomodate shrinkage of the tube and to assist ejection of the formed tube without application of longitudinal tension on the formed tube. The mandrel preferably includes a helical surface for progressively ejecting the rotating tubing from the static mandrel. The tube product may be formed with diameters as low as 4 millimeters and walls as thin as 0.5 millimeters and is radially compressed immediately after needling.

REFERENCES:
patent: 2941915 (1960-06-01), Manning
patent: 3116533 (1964-01-01), O'Byrne
patent: 3150434 (1964-09-01), O'Byrne
patent: 3497413 (1970-02-01), Ullman et al.
patent: 3508307 (1970-04-01), Dilo
patent: 3530557 (1970-09-01), Dilo
patent: 3673024 (1972-06-01), Eriksson
patent: 3758926 (1973-09-01), Dilo
patent: 3890681 (1975-06-01), Fekete et al.
patent: 3909893 (1975-10-01), Wilde
patent: 3952121 (1976-04-01), Dilo

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