B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
156/27, 210/29
B65D 47/28 (2006.01) B65B 3/02 (2006.01) B65D 47/10 (2006.01)
Patent
CA 1171387
ABSTRACT OF THE DISCLOSURE A pack for fluid filling materials comprises side walls of a thermo-plastics coated supporting material joined together to form a tube, and end walls forming bottom and cover of the pack mounted on the ends of the tube. The cover which is made of a thermo-plastic material and is moulded onto an end of the tube, has a pouring device which is pushed inwards inside the outer contour of the pack. The base is square and has a trans- verse sealing seam with triangular flaps which are folded over onto an adjacent wall. A method of making the pack comprises precorrugating the coated supporting material, feeding it in web form to bending and folding stations forming a tube which is then longitudinally sealed over a jig mandrel. The tube is advanced toward a moulding tool component where the cover is moulded, so as to join it to the end of the tube section. The cover is pressed into a transporting shape, and the pack, after being filled is sealed by welding the base thereon. Apparatus for making the pack comprises a jig mandrel with an outer moulding ring, a movable sealing jaw adjacent the mandrel, a transporting jaw downstream of the sealing jaw, and a cutter downstream of the mandrel with a rotatable mandrel wheel with at least three radially projecting mandrel shaped lower moulding tool components arranged beside the cutter. A moulding means with an upper moulding tool component is angularly spaced from the axis of the jig mandrel. A conveyor is provided with open- topped carriers spaced from one another, as well as a filling station and a sealing station under the wheel.
389158
Ridout & Maybee Llp
Tetra Pak Developpement Sa
LandOfFree
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