Container preform
AssigneeAmcor Rigid Packaging USA, LLC
InventorJohn Siciliano
Life of this patent
Estimating the term…
Abstract
A preform configured to form a container by stretch blow molding. A finish portion of the preform is at a first end of the preform. The finish portion is a container finish of the container. A support flange is at the finish portion. A tip portion is at a second end of the preform opposite to the first end and is configured to form a container base. A neck portion is adjacent to the support flange, and is configured to form a neck portion. An external stretch radius is at an outer surface of the neck portion. An internal stretch radius is at an inner surface of the neck portion. A first distance is between the internal stretch radius and the external stretch radius and is equal to, or greater than, four times a second distance between the external stretch radius and the support flange.
Claims6
A preform configured to form a container by stretch blow molding, the preform comprising:
- a finish portion at a first end of the preform, the finish portion is a container finish of the container;
- a support flange of the finish portion;
- a tip portion at a second end of the preform opposite to the first end, the tip portion configured to form a container base of the container, a longitudinal axis of the preform extends in a lengthwise direction from the first end to the second end of the preform through an axial center of the finish portion and a center of the tip portion;
- a neck portion adjacent to the support flange, the neck portion configured to form a neck portion of the container;
- an external stretch radius at an outer surface of the neck portion, the external stretch radius is curved and extends in the lengthwise direction;
- an internal stretch radius at an inner surface of the neck portion, the internal stretch radius is curved and extends in the lengthwise direction, a first distance between the internal stretch radius and the external stretch radius is equal to, or greater than, four times a second distance between the external stretch radius and the support flange;
- a shoulder portion adjacent to the neck portion and configured to form a container shoulder of the container;
- and
- a body portion between the shoulder portion and the tip portion, the body portion configured to form a container body of the container.
Dependencies are inferred from the claim text.