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Pouch for a pressurized bottle

A technology of bags and tubular walls, which can be used in liquid distribution, packaging, distribution devices, etc., and can solve problems such as blocking bags

Inactive Publication Date: 2009-12-09
LINDAL FRANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bottom plate will prevent the bag from fully shrinking due to its stiffness

Method used

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  • Pouch for a pressurized bottle
  • Pouch for a pressurized bottle
  • Pouch for a pressurized bottle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] [24] In both embodiments, the bag body 1 , 101 of the present invention is composed of a tubular wall 2 , 102 . The tubular wall is obtained by welding two sides of a body, wherein the two sides overlap each other. The longitudinal weld 23 , 123 is thus formed by affixing the inner surface of one of the sides to the outer surface of the other side of the strip. This longitudinal weld is thus located in the extension of the tubular wall and is not protruding as is the case in the prior art in which the two edges are welded by placing the inner surfaces of the edge portions of the strip facing each other.

[0025] [25] The tubular wall 2 , 102 consists of a strip closed to itself, for example by a weld seam, so that a circular cross-section without beading edges is obtained.

[0026] [26] The upper end 22, 122 is closed by flattening the tubular wall and welding the tubular wall to itself. An aerosol valve 4 , 104 known per se is provided in the center of this weld 22 ,...

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PUM

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Abstract

The invention relates to a pouch (1) for a pressurized bottle, made up of a tubular wall (2) closed in its upper part (22) by a welded seam into which a valve (4) is incorporated. According to the invention, the tubular wall (2) is obtained by overlapping and welding together the two lateral edges of a strip, and the tubular wall (2) is closed in its lower part (21) by an essentially round bottom wall (3). Thus, the tubular wall (2) of the pouch will have a practically circular cross section in a large lower part, this cross section tending towards an elliptical shape as it nears the upper end (22) where it becomes completely flat. The pouch (1) will, at least in a major lower part, occupy practically all the space in the bottle, considerably reducing the dead space in that part.

Description

technical field [0001] [01] The invention relates to a bag for pressurized bottles according to the preamble of the main claim. Background technique [0002] [02] Such pouches are commonly used in sprayers of the cosmetic and food as well as technical product category. The bag allows to separate the product to be administered from the propellant gas contained in the bottle. [0003] [03] The bag usually consists of two walls welded together by four welds, a valve being placed in the upper weld to allow extraction of the contents of the bag. [0004] [04] Once the bag is filled, the bag thus has an oval or elliptical cross-section. The two side welds each form a raised edge which makes it necessary to increase the size of the bottle to make room for it. Likewise, the bottom of the bag is flat and sets away from the bottle wall in a noticeable manner. In other words, the dead space inside the bottle caused by the bag geometry is not negligible. [0005] [05] The known doc...

Claims

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Application Information

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IPC IPC(8): B65D83/00
CPCB65D83/62
Inventor H·博代H-P·利利安塔尔
Owner LINDAL FRANCE
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