Extrusion blow molded PET container and method of making

Patent metadata

Field	Value
Publication number	US-9926097-B2
Application number	US-201414535677-A
Country	US
Kind code	B2
Filing date	Nov 7, 2014
Priority date	Mar 11, 2009
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

Abstract

A plastic container that is fabricated from an extrudable polyethylene terephthalate (PET) using an extrusion blow molding process includes a neck portion, a bottom portion and a main body portion. The main body portion has a central opening that extends completely through the main body portion and may have generally toroidal area surrounding the central opening. The bottom portion includes a plurality of support feet and a substantially smooth central raised portion that has substantially no discontinuities such as the gate well that is commonly found on PET containers fabricated using the conventional stretch blow molding process. The neck portion may be offset from a longitudinal axis of the container so as to facilitate pouring by a consumer.

First claim

What is claimed is:

1. A plastic container, comprising:
a neck portion;
a bottom portion; and
a main body portion that is unitary with said neck portion and said bottom portion, said main body portion including a liquid holding toroidal portion in front view forming at least part of a handle shaped and sized to facilitate griping, the toroidal portion defining a central opening extending completely through the container and substantially surrounded by the toroidal portion, the toroidal portion having a first maximum width at the handle and a second maximum width opposite the handle, the second maximum width being greater than the first maximum width,
wherein said container is fabricated from a material comprising polyethylene terephthalate (PET).

2. A plastic container according to claim 1 , wherein said plastic container is fabricated using an extrusion blow molding process.

3. A plastic container according to claim 1 , wherein said bottom portion contains no gate well.

4. A plastic container according to claim 1 , wherein said bottom portion comprises a plurality of feet, said feet being adapted to support said plastic container on an underlying flat horizontal surface.

5. A plastic container according to claim 4 , wherein said bottom portion further comprises a substantially smooth central raised portion.

6. A plastic container according to claim 1 , wherein said main body portion has a central longitudinal axis, and wherein said neck portion is offset from said central longitudinal axis.

7. A plastic container, comprising:
a neck portion;
a bottom portion opposite the neck portion, said bottom portion comprising a plurality of feet that are adapted to support said plastic container on an underlying flat horizontal surface and a substantially smooth central raised portion; and
a main body portion that is disposed between and unitary with said neck portion and said bottom portion, said main portion including a liquid holding toroidal portion in front view forming at least part of a handle shaped and sized to facilitate gripping, the toroidal portion defining a central opening extending completely through the container and substantially surrounded by the toroidal portion, the toroidal portion having a first maximum width at the handle and a second maximum width opposite the handle, the second maximum width being greater than the first maximum width,
wherein said container is fabricated from a material comprising polyethylene terephthalate (PET) using an extrusion blow molding process.

8. A plastic container according to claim 7 , wherein said substantially smooth central raised portion of said bottom portion contains no gate well.

Assignees

• Graham Packaging Co

Inventors

• Yourist Sheldon E

Classifications

• B65D1/0223 Primary

  characterised by shape · CPC title

• B65D2501/0081

  Bottles of non-circular cross-section · CPC title

• B29L2031/7158

  Bottles · CPC title

• B29K2067/00

  Use of polyesters {or derivatives thereof}, as moulding material · CPC title

• B65D1/023

  Neck construction · CPC title