System and method of forming a metallic closure for a threaded container
a technology of threaded containers and metallic closures, which is applied in the field of manufacturing and sealing of containers, can solve the problems of deformation of metallic bottles, high cost, and high cost, and achieve the effect of reducing the top-load, and reducing the amount of metallic materials
Active Publication Date: 2019-03-21
BALL CORP
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- Summary
- Abstract
- Description
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- Application Information
AI Technical Summary
Benefits of technology
This patent provides methods and apparatus of creating a metallic closure for a metallic bottle before placing it on the bottle. The closure includes a peripheral channel that reduces the amount of force required to seal the closure to the bottle, allowing for a thinner bottle to be used. The method also allows for a thread to be formed on the closure without the need for a thread roller, reducing the side-load force on the bottle. An apparatus for forming the thread on the closure is also provided, including a tool that can complete a partially formed thread or alter the geometry of a thread. Overall, this patent provides a way to create metallic closures for metallic bottles that are cost-effective and efficient.
Problems solved by technology
Failures are possible when a greater than nominal top-load is used with a nominal side-load.
Another failure observed when too much top-load is used is deformation of the metallic bottle 2.
Still another failure associated with the use of too much top-load is ROPP closures 10 that are undesirably difficult to remove from metallic bottles 2.
Failures also occur when less than the nominal top-load is used with a nominal side-load to seal a metallic bottle 2.
A less than nominal top-load may result in a failure due to substandard sealing of the metallic bottle 2.
This can result in insufficient contact of the ROPP liner 14 with the bottle curl 6 and a failure to seal the metallic bottle 2.
Another failure caused by using too little top-load is loss of seal of the metallic bottle 2 by movement of the ROPP closure 10.
This can result in venting of the content of the metallic bottle 2.
Although less than the cumulative load applied to glass bottles sealed with ROPP closures, these loads are almost excessive for current metallic bottles 2.
The small production window results in overstress and failures of the metallic bottle 2 or the ROPP closure 10 when the capping apparatus 22 is out of calibration or for marginal metallic bottles 2.
Further, deeper threads, which require more sideload, cannot be formed on the ROPP closure 10.
Another problem with prior art ROPP closures used to seal metallic containers is that a ROPP closure 10 may not be concentrically aligned with a metallic bottle 2 when a capping apparatus 22 forms a closure channel 32.
Accordingly, an inspection system would reject the metallic bottle 2 shown in FIG. 5 resulting in false spoilage.
Method used
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Embodiment Construction
[0099]The present disclosure has significant benefits across a broad spectrum of endeavors. It is the Applicant's intent that this specification and the claims appended hereto be accorded a breadth in keeping with the scope and spirit of the disclosure despite what might appear to be limiting language imposed by the requirements of referring to the specific examples disclosed. To acquaint persons skilled in the pertinent arts most closely related to the present disclosure, a preferred embodiment that illustrates the best mode now contemplated for putting the disclosure into practice is described herein by, and with reference to, the annexed drawings that form a part of the specification. The exemplary embodiment is described in detail without attempting to describe all of the various forms and modifications in which the disclosure might be embodied. As such, the embodiments described herein are illustrative, and as will become apparent to those skilled in the arts, can be modified i...
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Abstract
An apparatus and methods of forming a metallic closure for a metallic bottle are provided. The present disclosure provides a pre-formed metallic closure and apparatus and methods of forming the metallic closure. The metallic closure can be reformed with a peripheral channel before the metallic closure is positioned on a metallic bottle. An inner tool and an outer tool can form the channel in one operation. Optionally, a thread can be formed on a metallic closure prior to use of the metallic closure to seal a metallic bottle. A capping apparatus of the present disclosure uses less force to seal a metallic bottle with a metallic closure of the present disclosure compared to the force required with a prior art ROPP closure. Accordingly, a metallic closure of the present disclosure can seal a metallic bottle formed of less material (such as by being thinner) than prior art metallic bottles.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority under 35 U.S.C. § 119(e) to U.S. Provisional Patent Application Ser. No. 62 / 559,347 filed Sep. 15, 2017, which is incorporated herein in its entirety by reference.FIELD[0002]The present disclosure relates generally to the manufacture and sealing of containers. More specifically, this disclosure provides an apparatus and methods to form a threaded metallic closure which can subsequently be used to seal a threaded metallic container such as a bottle.BACKGROUND[0003]Metallic containers offer distributors and consumers many benefits and are used to store a variety of products including beverages and food products. Some metallic containers for beverages have a bottle shape. Metallic bottles typically include a closed bottom portion, a generally cylindrical body portion, a neck portion with a reduced diameter extending upwardly from the body portion, and an opening positioned on an uppermost portion of the neck ...
Claims
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IPC IPC(8): B21D51/50
CPCB21D51/50B21H7/187B21D51/44B21D51/46B65D41/34
Inventor ROSS, JOHN R.BONFOEY, DAVID J.
Owner BALL CORP
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