Finish Portion For Plastic Preform and Container and Method of Making
AssigneeGraham Packaging Company, L.P.
InventorsJoseph P. Labadie, Richard R. Johnston, Lance J. Novotny
Life of this patent
Estimating the term…
Abstract
A preform for making a plastic container includes a main body portion and a threaded finish portion that has an outer surface and an inner surface. The threaded finish portion has a proximal and that is unitary with the main body portion of the preform and a distal end that is opposite from the proximal end. At least one external thread is defined on the outer surface of the finish portion. A gripping indentation is advantageously defined in the outer surface and is longitudinally positioned between the external thread and the distal end of the finish portion. A container having such a finish portion and a method of making a container is also disclosed.
Claims20
A plastic preform, comprising:
- a main body portion;
- and
- a threaded finish portion, said threaded finish portion having an outer surface and an inner surface, said threaded finish portion further comprising:
- a proximal end that is unitary with said main body portion;
- an opposite distal end;
- at least one thread defined on said outer surface;
- and
- a gripping indentation defined in said outer surface, said gripping indentation being longitudinally positioned between said thread and said opposite distal end.
A plastic container, comprising:
- a main body portion;
- and
- a threaded finish portion, said threaded finish portion having an outer surface and an inner surface, said threaded finish portion further comprising:
- a proximal end that is unitary with said main body portion;
- an opposite distal end;
- at least one thread defined on said outer surface;
- and
- a gripping indentation defined in said outer surface, said gripping indentation being longitudinally positioned between said thread and said opposite distal end.
A method of making a plastic container, comprising steps of:
- providing a preform having a threaded finish portion that has at least one external thread and a gripping indentation that is located between the external thread and a distal end of the preform;
- engaging the preform with a transfer apparatus;
- and
- blow molding a container using the preform.
Dependencies are inferred from the claim text.