Plastics container

a container and plastic technology, applied in the field of plastic containers, can solve the problems of difficulty in manufacturing a lighter container that is still fit for purpose, and achieve the effect of reducing the weight ceiling of standard capacity containers

Inactive Publication Date: 2014-02-13
NAMPAK PLASTICS EURO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is designed to make containers lighter without making them weaker. This means that the containers will still be strong enough to carry their load safely.

Problems solved by technology

At present, for each container of the regular capacity sizes of milk container (e.g. 1 pint, 2 pint, 4 pint, 6 pint or 1 litre, 2 litre etc.), there is a weight “ceiling” which means that it is difficult to manufacture a lighter container that is still fit for purpose (e.g. suitable to pass the empirical 60N topload force test).

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0048]FIG. 1 shows a lightweight blow moulded plastics container 10 embodying one aspect of the invention. The container 10 comprises a body portion 12 and a neck portion 14. The body portion 12 defines a chamber 16 for storing liquid (e.g. milk). The neck portion 14 is mounted on and extends from the body portion 12 and has an open passageway 18 therethrough which communicates with the chamber 16 and through which the container 10 is filled with, and emptied of, liquid. As is normal in the art, the passageway 18 may by covered with a hermetic seal.

[0049]The neck portion 14 intersects the body portion 12 in a closed loop 20 with a non-planar profile. The closed loop 20 is located at the transition between the substantially cylindrical wall 22 at the base of the neck portion 14 and the upper part or shoulders 24 of the body portion 12.

[0050]The non-planar profile of the closed loop 20 is best illustrated with reference to FIG. 4 which shows a standard saddle surface 30. The closed lo...

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Abstract

A blow moulded container has a body portion defining a chamber for storing liquid and a neck portion extending from the body portion. The body portion defines a central longitudinal axis and the neck portion is coaxial therewith. The body portion defines an upper shoulder region of curved profile and the neck portion defines a circular cylindrical portion having side walls concentric with and parallel to the central longitudinal axis. The lower end of the cylindrical portion defines a closed loop and has a non-planar intersection with the shoulder region of the body portion.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS[0001]This application is a continuation of U.S. patent application Ser. No. 12 / 935,384, filed Nov. 19, 2010, pending, which is the U.S. national phase of PCT International Patent Application No. PCT / GB2009 / 051359 filed Oct. 12, 2009, which claims the benefit of United Kingdom Patent Application No. 0818830.2, filed Oct. 14, 2008, the entire contents of each of which are hereby incorporated by reference in this application.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002](NOT APPLICABLE)BACKGROUND OF THE INVENTION[0003]The present invention relates to a plastics container, particularly, but not exclusively, to a blow moulded plastics container of the kind commonly used for transporting or storing milk.[0004]It is known to package milk in lightweight plastics containers for retail through supermarkets and the like. There is a desire to make such plastics containers as light as possible, whilst ensuring that they remain fit f...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): B65D1/02
CPCB65D1/0223B29C49/04B29C49/4802B29C2049/4887B29L2031/463B65D1/023B65D23/10B65D2501/0081B65D85/80B65D23/102B65D2501/009B65D2501/0009B65D1/0207B29D22/003B65D1/02
InventorGLOVER, ANDREW
OwnerNAMPAK PLASTICS EURO