Apparatus for the production of tubular bodies

Details Apparatus for the production of tubular bodies Apparatus for the production of tubular bodies

1992-01-28

1994-05-10

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With bending, folding, winding, or wrapping means

156498, 1565835, B29D 2300

Patent

active

053104439

ABSTRACT:
In an apparatus for the production of tubular bodies such as tubes from a foil strip including a weldable plastic material, the longitudinal edges of which are welded together between two endless belts under the effect of heat and pressure with subsequent cooling, part of a belt runs against a mandrel in which individual portions thereof can be set to different temperatures to provide for selective control of the belt in order to increase the rate of production.

REFERENCES:
patent: 2676642 (1954-04-01), Bergstein et al.
patent: 3388017 (1968-06-01), Grimsley et al.
patent: 3575769 (1971-04-01), Radzio
patent: 4123312 (1978-10-01), Schmid et al.
patent: 4210477 (1980-07-01), Gillespie et al.
patent: 4997507 (1991-03-01), Meyer

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