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Valve element

A technology of components and valve bodies, applied in thin material handling, packaging, transportation and packaging, etc., can solve the problems of air entrapment, food spoilage, do not want to increase the overall size of the sealed bag, etc., and achieve the effect of simple manufacturing and low price

Inactive Publication Date: 2009-10-14
THE GLAD PROD CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] A common problem that arises with such bags is that entrapped air may remain trapped in the interior volume after the opening is sealed
In addition to undesirably increasing the overall size of the sealed bag, entrapped air may cause spoilage of food products stored in the interior volume

Method used

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Examples

Experimental program
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Embodiment Construction

[0025] Referring now to the drawings, wherein like parts are referred to like reference numerals, figure 1 A flexible storage bag 100 is shown in , which is used to store items such as edible food. The storage bag 100 includes a first side wall 102 and an opposing second side wall 104 superimposed and connected to the first side wall to provide an interior volume 106 therebetween. The first and second side walls 102, 104 are connected along a first side edge 110, a parallel or non-parallel second side edge 112, and a closed bottom edge 114 that is between the first and second side edges. extend between. The first and / or second side walls 102, 104 may be made of a flexible or pliable thermoplastic material that is formed or stretched into a smooth, thin-walled sheet. Examples of suitable thermoplastic materials include high density polyethylene (HDPE), low density polyethylene (LDPE), polypropylene (PP), ethylene vinyl acetate (EVA), nylon, polyester, polyamide, ethylene viny...

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PUM

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Abstract

A one-way valve element for use with containers such as flexible storage bags includes an elastomeric or similar material that can elastically expand to expose and at least substantially resiliency recover to cover an aperture through a sidewall of the container. Hence, air from the interior volume of the container can be evacuated through the valve element by, for example, interfacing an evacuation device with the valve element. The valve element can be provided as a single layer structure or a multiple layered structure that is attached to the sidewall of the container over the aperture. In another aspect, a valve element includes a gel-like material retained in a valve body and that can displace to allow air flow across the valve.

Description

Background technique [0001] Flexible plastic bags are widely used in a variety of situations, either for temporary storage of food as in the case of packaging snacks or for long-term storage of food as in the case of refrigeration (sub-zero degrees Celsius). Plastic bags of this type generally include flexible side walls made of, for example, polyethylene to provide an opening and an interior or interior volume accessible through the opening. To seal the bag, interlocking closure strips may be provided around the edges of the opening. [0002] A common problem that arises with such bags is that entrapped air may remain trapped in the interior volume after the opening is sealed. In addition to undesirably increasing the overall size of the sealed bag, entrapped air may cause spoilage of the food product stored in the interior volume. Contents of the invention [0003] The present invention provides, in various contexts, one-way valve elements and methods of use for use with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65B31/04
CPCB65D81/2038Y10T137/9247
Inventor S·班热A·E·内尔特纳
Owner THE GLAD PROD CO