Alcoa Inc.

Arconic Corporation

Alcon, Inc.

Alcoa USA Corp.

Kaiser Aluminum Warrick, LLC

Darl G Boysel

Robert E Dick

David J McNeish

Ralph R Sawtell

Jen C Lin

Roberto J Rioja

John Newman

Rajeev G Kamat

Gary L Myers

Gary H Bray

Shawn J Murtha

James Daniel Bryant

Shawn Patrick Sullivan

Gino Norman Iasella

Mario Greco

Brett P Connor

David J Mcneish

Anthony J Fedusa

Alejandro Jose Santamaria

Thomas N Rouns

Harry R Zonker

Richard R Mathabel

Jean F Capps

Christopher R Miller

John S Ward

Samuel Combs

Neesha A Ghadiali

Greg Mrozinski

Guy P Wilson

New magnesium-zinc aluminum alloy bodies and methods of producing the same are disclosed. The new magnesium-zinc aluminum alloy bodies generally include 3.0-6.0 wt. % magnesium and 2.5-5.0 wt. % zinc, where at least one of the magnesium and the zinc is the predominate alloying element of the aluminum alloy bodies other than aluminum, and wherein (wt. % Mg)/(wt. % Zn) is from 0.6 to 2.40, and may be produced by preparing the aluminum alloy body for post-solutionizing cold work, cold working by at least 25%, and then thermally treating. The new magnesium-zinc aluminum alloy bodies may realize improved strength and other properties.

Heat treatable aluminum alloys having magnesium and zinc

Heat treatable aluminum alloys having magnesium and zinc and methods for producing the same

A knockout has a support surface and the support surface has: (i) a first knockout outer diameter capable of supporting the first inner diameter of a container side wall when the knockout is inserted into an opening of the metal container and when the metal container is being necked with a necking die; and (ii) a second knockout outer diameter capable of supporting the second inner diameter of the container side wall when the knockout is inserted into the opening of the metal container and when the metal container is being necked with the necking die, and wherein the first knockout outer diameter is larger than the second knockout outer diameter.

Knockout for use while necking a metal container, die system for necking a metal container and method of necking a metal container

A double-walled container and method of manufacturing are disclosed. A first container having a smaller diameter than a second container is inserted into the second container. A portion of the first container is expanded and/or a portion of the second container may be narrowed so that first and second container is interlocked and form a double-walled container. The first and/or second containers may have ribs. An air gap between the first and second containers provides thermal insulation to contents of the double-walled container.

Double-walled container and method of manufacture

A sheet metal end shell for conversion into easy opening beer and beverage ends with reduced metal usage while maintaining commercially acceptable buckle resistance. The end shell has an upper chuckwall portion that is disposed at an angle of about 20-35 degrees to vertical, a countersink bead having a width of about 0.020-0.040 inch, and further preferably having a countersink depth of less than about 0.250 inch and a panel depth less than about 0.070 inch.

Metal end shell and easy opening can end for beer and beverage cans

A can end is provided that has a three part chuck wall. The first chuck wall has an angle of 20 degrees to 35 degrees as measured from an axis perpendicular to the can end. The second chuck wall has an angle of 4 degrees to 27 degrees as measured from the axis. The third chuck wall has an angle of 18 degrees to 32 degrees as measured from the axis. Tooling adapted to manufacture the can end is also provided. Additionally, a seaming chuck is provided that has a recess that is adapted to avoid contact with radii of curvature along the chuck wall during seaming of the can end to a can body.

Can end, tooling for manufacture of the can end and seaming chuck adapted to affix a converted can end to a can body

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Delmont, PA, United States of America

Darl G Boysel