Apparatus for collapsing a container
OwnerEdward S. Robbins, IIIinventor
Life of this patent
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Abstract
An apparatus is provided for forming a collapsed and folded thin-walled container. In collapsed and folded form, the container has first and second folded portions concentrically adjacent one another in generally surrounding relationship to tapered shoulder and reduced diameter neck portions of the container. The apparatus includes inner and outer, concentrically arranged and relatively movable pusher members for forming the first and second folded portions, respectively.
Claims15
Apparatus for forming a collapsed and folded container in a sequential cycle, the container having a bottom wall, peripheral side wall, and a narrow neck portion including a discharge opening, the apparatus comprising:
- a container holder mounted on a support surface for holding the container upright;
- a plug for engaging the discharge opening in sealing relationship and loading the container into a predetermined working position relative to said container holder;
- an outer pusher member positioned for engaging a predetermined portion of the container side wall to form a first folded side wall portion;
- an inner pusher member positioned for engaging the tapered shoulder portion of the container and pushing the shoulder portion downwardly to form a second folded sidewall portion;
- and
- means for actuating and controlling sequential movements of the plug and the outer and inner pusher members.
Apparatus for forming a collapsed and folded container, the container having a bottom wall, a peripheral side wall having at least upper, lower and intermediate annular steps formed therein, and a tapered shoulder portion terminating in a narrow neck having a discharge opening, the apparatus mounted on a support surface and comprising:
- a first reciprocable member for engaging the container by sealingly engaging the discharge opening, and for locating the container in a first portion relative to the work surface;
- a container holding member for supporting and retaining the container in said first position;
- a second reciprocable member mounted for linear movement relative to said first member, said second reciprocable member positioned to engage the tapered shoulder portion of the container;
- a third reciprocable member mounted for linear movement relative to said first and second reciprocable members, positioned to engage the intermediate step on the peripheral side wall;
- wherein said first, second and third members are supported from a stationary platen fixedly supported above said work surface, in concentric relationship with each other.
Dependencies are inferred from the claim text.