Helical coil tube-form insert for flexible bags

Details Helical coil tube-form insert for flexible bags Helical coil tube-form insert for flexible bags

1977-08-29

1979-02-06

Tollberg, Stanley H.

Dispensing

Collapsible wall-type container

With casing or support

222464, B65D 3556

Patent

active

041380363

ABSTRACT:
A helical coil winding inserted in a flexible bag, such as a plastic bag, and connected to or associated with the dispensing spout or neck opening thereof. The helical coil will extend into the bag and will provide a form, about which the flexible wall of the bag will collapse and form, to provide a dispensing tube or passageway leading to the bag spout, as the contents of the bag are removed as a result of a pumping action, suction action or other condition resulting in differential pressure causing collapse of the bag.

REFERENCES:
patent: 1038181 (1912-09-01), Mossberg
patent: 3043316 (1962-07-01), Bolser
patent: 3090526 (1963-05-01), Hamilton et al.
patent: 3138293 (1964-06-01), Roak et al.
patent: 3549050 (1970-12-01), Bruce
patent: 4062475 (1977-12-01), Harris et al.

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