Sealing system for molding machine
AssigneeAmcor Limited
InventorsKirk Edward Maki, George David Lisch, Bradley Wilson
Life of this patent
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Abstract
A system for forming a container from a preform, wherein the preform has a finish and a support ring. The system includes a mold having a mold cavity defining an internal surface and adapted to accept the preform, a pressure system having an inlet and an outlet outputting fluid, a blow nozzle receiving the fluid from the pressure system and introducing the fluid at a pressure into the preform thereby expanding the preform toward the internal surface of the mold cavity and creating a resultant container. The system further includes a first seal engagement selectively engageable between the blow nozzle and the finish of the preform and a second seal engagement selectively engageable between the blow nozzle and an adjacent feature.
Claims31
A system for forming a container from a preform, the preform having a finish and a support ring, the system comprising:
- a mold having a mold cavity defining an internal surface and adapted to accept the preform;
- a pressure system having an inlet and an outlet, the pressure system outputting liquid;
- a blow nozzle receiving the liquid from the pressure system and introducing the liquid at a pressure into the preform thereby expanding the preform toward the internal surface of the mold cavity and creating a resultant container;
- a first seal engagement selectively engageable between the blow nozzle and the finish of the preform;
- and
- a second seal engagement selectively engageable between the blow nozzle and an adjacent feature;
- wherein the first seal engagement and the second seal engagement are arranged to prevent liquid seepage along the exterior of the preform prior to forming and filling the preform.
A system for forming a container from a preform, the preform having a finish and a support ring, the system comprising:
- a mold having a mold cavity defining an internal surface and adapted to accept the preform;
- a pressure system having an inlet and an outlet, the pressure system outputting fluid;
- a blow nozzle receiving the fluid from the pressure system and introducing the fluid at a pressure into the preform thereby expanding the preform toward the internal surface of the mold cavity and creating a resultant container;
- a first seal engagement selectively engageable between the blow nozzle and the finish of the preform;
- a second seal engagement selectively engageable between the blow nozzle and an adjacent feature;
- and
- a counter pressure system operably coupled between the first seal engagement and the second seal engagement, the counter pressure system applying a counter pressure generally equal to a pressure within the preform during the introduction of the fluid.
A system for forming a container from a preform, the preform having a finish and a support ring, the system comprising:
- a mold having a mold cavity defining an internal surface and adapted to accept the preform;
- a pressure system having an inlet and an outlet, the pressure system outputting fluid;
- a blow nozzle receiving the fluid from the pressure system and introducing the fluid at a pressure into the preform thereby expanding the preform toward the internal surface of the mold cavity and creating a resultant container;
- a first seal engagement selectively engageable between the blow nozzle and the finish of the preform;
- a second seal engagement selectively engageable between the blow nozzle and an adjacent feature;
- and
- an aspiration port system operably coupled between the first seal engagement and the second seal engagement, the aspiration port system applying a vacuum sufficient to remove residual liquid from a volume between the first seal engagement and the second seal engagement.
A system for forming a container from a preform, the preform having a finish and a support ring, the system comprising:
- a mold having a mold cavity defining an internal surface and adapted to accept the preform;
- a pressure system having an inlet and an outlet, the pressure system outputting liquid;
- a blow nozzle receiving the liquid from the pressure system and introducing the liquid at a pressure into the preform thereby expanding the preform toward the internal surface of the mold cavity and creating a resultant container;
- a first seal engagement selectively engageable between the blow nozzle and the finish of the preform;
- and
- a second seal engagement selectively engageable between the blow nozzle and an adjacent feature;
- wherein the first seal engagement and the second seal engagement are arranged to inhibit flow of the liquid between the nozzle and the adjacent feature.
Dependencies are inferred from the claim text.