Closure plug and overseal

A technology of external sealing and capping, applied in the direction of caps, closures, threaded closures, etc., can solve problems such as damage and cap damage

Active Publication Date: 2006-12-13
AMERICAN FLANGE & MFG CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this regard, the use of sharp cutting or piercing tools is undesirable du

Method used

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  • Closure plug and overseal
  • Closure plug and overseal
  • Closure plug and overseal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] exist Figure 1-5 In the embodiment shown, the wall 1 of a container, such as an industrial size plastic tub, has an upstanding neck 2 which defines an internally threaded aperture in the container wall. The neck 2 terminates at its upper end in an annular gasket seat 3 a surrounded by an upstanding collar 4 . Immediately below the collar 4 is a peripheral annular flange 5 .

[0026] A cup-shaped closure plug 6 is screwed into the neck 2 , said closure plug 6 having a bottom wall 7 and an externally threaded side wall 8 . The plug has a circumferentially enlarged head 9 with a gasket retaining groove 10 and an elastic sealing gasket 11 on its bottom face. Seeing the top surface of the plug in Figure 3, there is a series of four equally spaced spanner engaging lugs 12 which are hollowed out at 13. Furthermore, it can be seen that the width of the lugs 12 is slightly smaller than the width of the gap 14 therebetween. Each lug has two radially extending wrench engaging...

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PUM

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Abstract

A closure combination of a closure plug for shipping containers and a tamper evident, closure overseal, the closure plug (6, 45) and the overseal (20, 52) having hidden, complimentary, interlocking, snap-fit features (17, 49, 23, 56, 24, 57) and a frangible portion (26, 53a), to permit removal of the overseal from the plug, that is visible when the closure plug and the overseal are interlocked; the interlocking, snap-fit features may be internal or external of the closure plug but are hidden by the overseal skirt (22, 54) and the overseal is destroyed on removal from the closure cap.

Description

technical field [0001] The present invention relates to a closure assembly for a shipping container, such as a bucket, comprising a closure plug and a tamper-resistant closure overseal. Background technique [0002] In today's global political climate, the safety of cask products lies in fairly rigorous inspections. This, along with the general need for tamper resistance, is driving a trend toward the increased use of tamper-indicating seals on all types of shipping containers. It has long been practiced to install one or the other of the outer seals with specialized hand and power tools capable of crimping the metal portion of the outer seal tightly around an upstanding open neck part, the neck is designed to receive the seal. Such outer seals are quite expensive, as are the tools to install them. Furthermore, the installation step itself is rather labor intensive and relatively inefficient. As a result, there have been some manually installed outer seals which to some ...

Claims

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Application Information

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IPC IPC(8): B65D39/08B65D41/58B65D55/06
CPCB65D39/08B65D55/06B65D55/0863
Inventor D·B·德维内尔C·R·范德克利佩
Owner AMERICAN FLANGE & MFG CO INC
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