Method and apparatus for forming a parison
AssigneeOwens-Brockway Glass Container Inc.
InventorRobin L Flynn
Life of this patent
Estimating the term…
Abstract
A method and apparatus for forming a container parison and container are disclosed. The method of forming a container parison in accordance with one aspect of the disclosure includes receiving molten glass in a forming mold having an open upper end, an open lower end, a forming chamber between the open upper and lower ends; supporting the molten glass in the forming mold at the open lower end thereof; and pressing the molten glass in the forming mold with a plunger to form a parison suspended downwardly from the neck finish and out of the open lower end of the mold.
Claims39
A method of forming a container parison, comprising:
- receiving molten glass in a forming mold having an open upper end, an open lower end, a forming chamber between the open upper and lower ends;
- supporting the molten glass in the forming mold at the open lower end thereof using a movable lower plate below the open lower end of the forming mold to abut and cover the open lower end of the forming mold in a closed position of the movable lower plate, and being movable away from the open lower end of the forming mold;
- and
- pressing the molten glass in the forming mold with a plunger to form a parison suspended downwardly from a neck finish and out of the open lower end of the mold, wherein the plunger has a plunger tip extendible out of the lower end of the forming mold.
A container parison forming apparatus, comprising:
- a forming mold including an open upper end, an open lower end, and a forming chamber between the open upper and lower ends;
- a movable lower plate below the open lower end of the forming mold to abut and cover the open lower end of the forming mold in a closed position of the movable lower plate, and being movable away from the open lower end of the forming mold;
- and
- a plunger movable into the open upper end of the forming mold and having a plunger tip extendible out of the lower end of the forming mold during operation.
A container forming system, comprising:
- a container parison forming apparatus that includes
- a forming mold including an open upper end, an open lower end, and a forming chamber between the open upper and lower ends;
- a movable lower plate below the open lower end of the forming mold to abut and cover the open lower end of the forming mold in a closed position of the movable lower plate, and being movable away from the open lower end of the forming mold;
- and
- a plunger movable into the open upper end of the forming mold and having a plunger tip extendible out of the lower end of the forming mold during operation;
- and
- a blow mold movable into a blow molding position below the open lower end of the forming mold.
A container parison forming apparatus, comprising:
- a forming mold including an open upper end, an open lower end, and a forming chamber between the open upper and lower ends, the forming mold configured to receive molten glass into the open upper end;
- a plunger movable into the open upper end of the forming mold and having a plunger tip extendible out of the lower end of the forming mold during operation, the plunger being configured to push the molten glass through the forming chamber and past the open lower end of the forming mold to form a glass parison;
- and
- a movable lower plate below the open lower end of the forming mold to cover the open lower end of the forming mold in a closed position of the movable lower plate, the movable plate supporting the molten glass and being configured to move away from the open lower end of the forming mold as the molten glass is pushed through the forming chamber by the plunger.
Dependencies are inferred from the claim text.