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US 10,369,738 B2Granted
Method of cooling a finish and providing counter pressure during forming of a container
AssigneeDiscma AG
InventorsFrederick C. Beuerle, G. David Lisch, Jr., Richard Steih, Semen Kharchenko, Pankaj Kumar
Life of this patent
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Abstract
A method of forming a plastic container from a preform that includes cooling and optionally providing counter pressure to a finish of a preform during forming of a container. During the method, an injection nozzle directs a cooling medium into a receiving space into which the finish is received.
Claims18
A method of forming a plastic container from a preform and filling the same, the method comprising the steps of:
- providing a preform having a body with a finish defined on one end of the preform;
- engaging an injection nozzle with the finish to form a first sealed engagement between the injection nozzle and the finish, the first sealed engagement separating an inner volume from an exterior side of the finish;
- injecting a liquid blow medium into the preform to expand the body of the preform within a mold thereby simultaneously forming a container and filling the container with the liquid, the method characterized by
- applying a cooling medium at the exterior side of the finish, the cooling medium being provided at a temperature that is less than the temperature of the finish, wherein the step of applying the cooling medium includes supplying the cooling medium to the injection nozzle and uniformly directing the cooling medium at the finish.
1 more element
A method of forming a plastic container from a preform and filling the same, the method comprising the steps of:
- providing a preform having a body with a finish defined on one end of the preform;
- engaging an injection nozzle with the finish to form a first sealed engagement between the injection nozzle and the finish, the first sealed engagement separating an inner volume from an exterior side of the finish;
- forming a second sealed engagement between the injection nozzle and one of the preform and the mold, the second sealed engagement being axially spaced from the first sealed engagement along the preform, the second sealed engagement being formed between the injection nozzle and a support ring of the preform;
- injecting a liquid blow medium into the preform to expand the body of the preform within a mold thereby simultaneously forming a container and filling the container with the liquid;
- and
- applying a cooling medium at the exterior side of the finish, the cooling medium being provided at a temperature that is less than the temperature of the finish, wherein the step of applying the cooling medium further comprises supplying the cooling medium to the injection nozzle and uniformly directing the cooling medium at the finish.
3 more elements
A method of forming a plastic container from a preform and filling the same, the method comprising the steps of:
- providing a preform having a body with a finish defined on one end of the preform;
- engaging an injection nozzle with the finish to form a first sealed engagement between the injection nozzle and the finish, the first sealed engagement separating an inner volume from an exterior side of the finish;
- injecting a liquid blow medium into the preform to expand the body of the preform within a mold thereby simultaneously forming a container and filling the container with the liquid, the method characterized by
- applying a cooling medium at the exterior side of the finish during lowering of the injection nozzle, the cooling medium being provided at a temperature that is less than the temperature of the finish, the step of applying the cooling medium including supplying the cooling medium to the injection nozzle and uniformly directing the cooling medium at the finish.
1 more element
A method of forming a plastic container from a preform and filling the same, the method comprising the steps of:
- providing a preform having a body with a finish defined on one end of the preform;
- engaging an injection nozzle with the finish to form a first sealed engagement between the injection nozzle and the finish, the first sealed engagement separating an inner volume from an exterior side of the finish;
- injecting a liquid blow medium into the preform to expand the body of the preform within a mold thereby simultaneously forming a container and filling the container with the liquid;
- applying a cooling medium at the exterior side of the finish, the cooling medium being provided at a temperature that is less than the temperature of the finish, the step of applying the cooling medium further including supplying the cooling medium to the injection nozzle and uniformly directing the cooling medium at the finish;
- and
- providing a counter pressure about the finish by restricting the exhausting of the cooling medium from a receiving space located about the finish.
3 more elements
Dependencies are inferred from the claim text.