Container handling system
View Patent ↗A system for processing a simplified plastic container (C) that is to be filled with a hot product includes the step of blow-molding parison to form a container body, where the container body has a neck, a base, a side surface relatively free of structural geometry that surrounds an interior of the container body and, prior to being filled with the hot product, a projection ( 12 ) extending from the container body. After the container body is filled with a hot product in a production line, the neck of the filled container body is capped with a cap and then, the container body is cooled. During the cooling operation, the hot product is contracted so that the projection extending from the container can be pushed (P) into the container body like a traditional push-up so that the resultant, filled and cooled container body is relatively free of structural geometry.
1. A system for processing a plastic container, comprising:
means for blow-molding a parison to form a container body with a bottom and a projection extending outwardly from the bottom of the container body;
means for inverting the projection to extend inwardly from the container body bottom such that the projection is fully above a standing ring to achieve a geometrically stable position in which the standing ring can rest on a planar surface;
means for transporting the container body in its geometrically stable position;
means for filling the container after the transporting;
means for sealing the container after the transporting; and
means for pushing up at least part of the projection after the container is sealed by the means for sealing, to reduce volume inside the container.
2. The system of claim 1 , further comprising means for cooling the container body to create a vacuum in the container.
3. The system of claim 1 , further comprising means for cooling a hot product to create a vacuum in the container.
4. The system of claim 1 , further comprising means for creating a vacuum in the filled and sealed container.
5. The system of claim 1 , wherein said pushing reduces distortion caused by a vacuum created in the container, so that the resultant container body has sidewalls with a substantial portion that is relatively free of structural geometry.
6. The system of claim 1 , wherein the container body has sidewalls free of any vacuum panels.
7. The system of claim 6 , wherein the sidewalls are smooth.
8. The system of claim 7 , wherein the container simulates a glass container.
9. The system of claim 1 , wherein the container has sidewalls, the sidewalls consisting of a first portion and a second portion, the first portion being free of any vacuum panels, and the second portion consisting of a grip panel.
10. The system of claim 9 , wherein the grip panel includes a vacuum panel.
11. The system of claim 10 , wherein the grip panel includes a plurality of vacuum panels.
12. The system of claim 1 , wherein the means for pushing is configured to push as least part of the projection from an outwardly extending position to an inwardly extending position.
13. The system of claim 1 , wherein the means for pushing is for pushing at least part of the projection from below the standing ring to above the standing ring.
14. The system of claim 1 , wherein the means for pushing is adapted for pushing the entire projection.