Extrusion aid

Details Extrusion aid Extrusion aid

1990-07-31

1991-12-10

Huppert, Michael S.

Dispensing

Collapsible wall-type container

With wall-collapsing means

222 95, B65D 3528

Patent

active

050710362

ABSTRACT:
In this invention an extrusion aid comprises a strip of material which is desirably a low friction material such as a polymer, but nevertheless sufficiently rigid to deform the flexible wall of a tube containing paste or fluid contents, and the strip is provided with an elongate slot which is wider at its ends than intermediate its ends, and may terminate in part-circular walls. If the part-circular walls are spaced apart to accommodate the edges of a tube after extrusion takes place, the extrusion aid will be less likely to grip those edges and furthermore the aid will be easily positioned over the tube.

REFERENCES:
patent: 2023763 (1935-12-01), Hinz
patent: 3248012 (1966-05-01), Adams
patent: 4159787 (1979-07-01), Wright
patent: 4574983 (1986-03-01), Fatkin
patent: 4778082 (1988-10-01), Vitelle
patent: 4928851 (1990-05-01), Eatherly
patent: 4976380 (1990-12-01), von Schuckmann

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