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Thermoplastic material container

A thermoplastic, container technology, applied in the direction of containers, bottles, rigid containers, etc.

Inactive Publication Date: 2007-10-17
SIDEL PARTICIPATIONS SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, low blow molding pressures such as those just mentioned, while capable of correctly shaping the thermoplastic in parts of the final finished container of simple shape, have not proven to be sufficient to systematically correct complex shaped parts. take shape

Method used

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  • Thermoplastic material container
  • Thermoplastic material container
  • Thermoplastic material container

Examples

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Embodiment Construction

[0025] In the following description, particular reference is made by way of example to a generally cylindrical container of revolution, such as a bottle, however, it should be understood that the application of the present invention is not limited to this type of container and may be applied to Containers having other shapes, especially polygonal, especially square or rectangular.

[0026] It should also be emphasized that the measures of the present invention apply only to containers intended to hold dead liquids (i.e. non-carbonate liquids), more specifically to contain dead water, in particular A bottle for drinking still water, though that's not all.

[0027] Figures 1 to 3 give representations of a portion of a container 1, in this example manufactured from a thermoplastic such as PET and blow molded by blow molding a preform preheated to the softening temperature of the thermoplastic. Bottles made by extrusion or stretch blow molding. The bottle comprises a body 2 (onl...

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Abstract

The invention concerns a container, in particular a bottle, made of thermoplastic material produced by blow moulding or stretch-blow moulding of a heated preform, said container (1) designed to contain a liquid being flat and having a substantially domed base (3) with outward-facing cavity defining a substantially planar peripheral annular seat (4) for being set on a support (7) said base (3) being provided with several grooves (5) radiating from the base center. The invention is characterized in that each groove (5) in its zone of intersection with the annular seat (4), has a portion (8) of substantially increased width and in that the two edges (10) of that portion (8) of the groove are curved with relatively large radii of curvature and with respective concavities facing one another.

Description

technical field [0001] This invention relates to improvements in thermoplastic containers, particularly bottles, made by blow molding or stretch blow molding of heated preforms, and more particularly to those Container for liquids having a generally dome-shaped base with an outwardly directed depression and defining a generally planar peripheral annular seat for resting it on a support, said The base is provided with several grooves radiating from the center of the base. Background technique [0002] Manufacturers have always wanted to be able to produce such containers in the most economical manner possible, that is to say with the lowest energy (among them electrical) and compressed air consumption, at higher production rates and with the lowest amount of raw materials. [0003] Reducing the amount of raw material results in very thin walls of the container which must be mechanically reinforced with grooves. Therefore, the same is true for the base, which must not only b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D1/02
CPCB65D1/0284B65D1/0261
Inventor M·德瑞恩
Owner SIDEL PARTICIPATIONS SAS
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