Apparatus for forming a stretchable tubular packaging material

Details Apparatus for forming a stretchable tubular packaging material Apparatus for forming a stretchable tubular packaging material

1972-09-07

1977-06-14

Drummond, Douglas J.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

With cutting, punching, piercing, severing, or tearing

156515, 83105, B32B 3100, B29D 706

Patent

active

040295397

ABSTRACT:
An apparatus for producing a resilient, readily stretchable tubular member for receiving and packaging articles therein, the apparatus including means for uniting two contiguous layers of flexible foam sheet material by fusibly uniting adjacent side edges of the two layers to form the same into a tubular member. Slitting means is provided for slitting the foam material in a pattern of spaced apart rows of spaced incisions, the rows being so arranged that the tube may be stretched radially to receive therein an article of greater cross sectional area than the initial internal cross sectional area of the tube.

REFERENCES:
patent: 2631509 (1953-03-01), Whytlaw
patent: 2759524 (1956-08-01), Davis
patent: 2805973 (1957-09-01), Klasing et al.
patent: 3040966 (1962-06-01), Crane
patent: 3140330 (1964-07-01), Gutierrez
patent: 3486957 (1969-12-01), Fish et al.

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