Container base with deep inset recesses

Patent metadata

Field	Value
Publication number	US-12503268-B2
Application number	US-202018039995-A
Country	US
Kind code	B2
Filing date	Dec 10, 2020
Priority date	Dec 10, 2020
Publication date	Dec 23, 2025
Grant date	Dec 23, 2025

Abstract

A polymeric container including a finish defining an opening of the container. A body defines an internal volume for storing product therein. A base is at an end of the body opposite to the finish. The base defines a plurality of recesses spaced apart from one another about an axial center of the base.

First claim

What is claimed is:

1 . A polymeric container comprising:
a finish defining an opening of the container; a body defining an internal volume for storing product therein; and a base at an end of the body opposite to the finish, the base defining a plurality of recesses spaced apart from one another about an axial center of the base, each one of the recesses including a sidewall and an innermost end surface that is angled in cross-section such that the plurality of recesses are deepest proximate to the axial center of the base, wherein:
at the plurality of recesses the base is thinner than between the plurality of recesses, and
at the plurality of recesses the base has higher crystallinity than between the plurality of recesses.

2 . The polymeric container of claim 1 , wherein the plurality of recesses are spaced apart equidistantly about the axial center of the base.

3 . The polymeric container of claim 1 , wherein the plurality of recesses are spaced apart randomly about the axial center of the base.

4 . The polymeric container of claim 1 , wherein the plurality of recesses are between a standing ring of the base configured to support the container upright and an axial center of the base.

5 . The polymeric container of claim 1 , wherein the plurality of recesses are round.

6 . The polymeric container of claim 1 , wherein the plurality of recesses are oval.

7 . The polymeric container of claim 1 , wherein the plurality of recesses are square.

8 . The polymeric container of claim 1 , wherein the plurality of recesses are triangular.

9 . The polymeric container of claim 1 , wherein the plurality of recesses are star-shaped.

10 . The polymeric container of claim 1 , wherein the plurality of recesses consist of intermixed shapes.

11 . The polymeric container of claim 1 , wherein the plurality of recesses consist of different sizes and depths.

12 . The polymeric container of claim 1 , wherein the plurality of recesses are arranged in an outer group and an inner group, each one of the plurality of recesses in the outer group is further from the axial center than each one of the plurality of recesses in the inner group.

13 . The polymeric container of claim 1 , wherein at the plurality of recesses the base has a thickness of about 0.25 mm-0.50 mm, and between the plurality of recesses the base has a thickness of about 0.60 mm-1.15 mm.

14 . The polymeric container of claim 1 , wherein the plurality of recesses have a depth that is greater than a width.

Assignees

• Amcor Rigid Packaging Usa Llc

Inventors

• Stelzer James
• Philip Bradley S
• Lane Michael T

Classifications

• B65D1/0284

  having a discontinuous contact surface, e.g. discrete feet · CPC title

• B65D1/0276 Primary

  having a continuous contact surface, e.g. Champagne-type bottom · CPC title

• B29C49/14

  Clamps · CPC title

• B29C49/427

  Auxiliary deformation, i.e. not caused by pre-stretching or blowing not otherwise provided for · CPC title

• B29C2049/4882

  Mould cavity geometry · CPC title