Dispensing – Collapsible wall-type container – With wall-collapsing means
Patent
1986-07-30
1988-08-23
Skaggs, H. Grant
Dispensing
Collapsible wall-type container
With wall-collapsing means
222135, 222107, 222183, 251208, B65D 3534
Patent
active
047655127
ABSTRACT:
A special spring construction is particularly adopted for a dispensing system for fluent materials from a plastic or equivalent thin film bag rolled up inside a coiling spiral formed from a strip sheet constant force spring material to squeeze out the bag contents completely and to produce dispensing force during storage periods for bulk quantities. The coil spring strip may be of a metal, plastic, elastomer or fibrous materials and may form a wall of the bag so that the container may be made at very low cost for storage of bulk fluids for dispensing therefrom one serving at a time. Thus, a package array for fluent materials comprises a thin flexible-walled container or bag having a common area with an uncoiled spiral constant force spring strip and positioned to coil up by rolling up a container bag tail inside the coil spring spiral as constants are discharged. The bag is placed in a container confining the fluid bag contents to occupy a position with a height corresponding to that of the constant force coil spring spiral diameter thereby to exert by the spiral a substantially constant force aiding the discharge of the contents over the entire bag capacity. Various embodiments include mixing of separate stored ingredients at the time of dispensing, the unrefrigerated storage of milk for days, the dispensing of multiple carbonated beverage servings without decomposition, and the aseptic storage and dispensing of fluent materials made possible by preventing entry of air into materials stored in bulk when servings are made to dispense portions thereof.
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Brown Laurence R.
Mangels Alfred J.
Skaggs H. Grant
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