US 12,030,233 B2 · Container and method of manufacture

Abstract

A method includes injection molding a preform using a two phase injection system having a first phase in which a material is injected into the preform and a second phase in which the material is injected into the preform. The preform is disposed in a mold. The preform is blow molded into an intermediate article. The intermediate article is trimmed to form a finished container. The first phase includes injecting a material into the preform to form a single layer of the preform and the second phase includes injecting the material to form inner and outer layers and an intermediate layer between the inner and outer layers. The inner and outer layers include the material and the intermediate layer includes at least one additive. Finished containers are disclosed.

Claims20

Dependent claims

A container comprising:

a top section comprising a first wall having only one layer;
and
a bottom section including a second wall comprising an outer layer, an intermediate layer and an inner layer, the bottom section being connected with the top section such that the outer layer of the bottom section is continuous with an outer surface of the first wall and the inner layer of the bottom section is continuous with an opposite inner surface of the first wall,
wherein the only one layer of the top section, the outer layer of the bottom section and the inner layer of the bottom section are made from a first material, and
wherein the intermediate layer of the bottom section comprises an additive.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/525,047Filed 12 Nov 2021 · continuation

Priority

11 Mar 2016

Published

US 2022/0072757 A110 Mar 2022

Granted

9 Jul 2024

Term ends

Not estimatedThe source records don’t support an estimate.

Classification44 codes

B29C 49/06
Combined blow-moulding and manufacture of the preform or the parison: injection blow-moulding
B29B 11/14
Making preforms: characterised by structure or composition
B29C 49/0005
Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor: characterised by the material
B29C 49/0665
Injection blow-moulding: the injection mould cavity and the blow-mould cavity being displaceable to the geometrically fixed injection core mould

Family

Application62/307,069Us provisional application · filed 11 Mar 2016

Application62/336,941Us provisional application · filed 16 May 2016

Application15/455,503Parent of this continuation · filed 10 Mar 2017

Application16/738,422Parent of this continuation · filed 9 Jan 2020

Application16/738,440Parent of this continuation · filed 9 Jan 2020

US 10,583,602 B2Parent of this continuation · filed 10 Mar 2020

US 2022/0072757 A1Pre-grant publication · published 10 Mar 2022

US 11,192,287 B2Parent of this continuation

US 11,207,817 B2Parent of this continuation

US 2017/0259486 A1Published application

US 2020/0171730 A1Published application

US 2020/0171731 A1Published application

US 12,030,233 B2This patent

From the US filing history. Foreign family members aren’t listed.

Container and method of manufacture

Life of this patent

Container and method of manufacture

Life of this patent

Abstract

Claims20