Invention Grant
US09327338B2 Knockout for use while necking a metal container, die system for necking a metal container and method of necking a metal container
有权
用于颈缩金属容器时的敲除，用于颈缩金属容器的模具系统和颈缩金属容器的方法
- Patent Title: Knockout for use while necking a metal container, die system for necking a metal container and method of necking a metal container
- Patent Title (中): 用于颈缩金属容器时的敲除，用于颈缩金属容器的模具系统和颈缩金属容器的方法
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Application No.: US13722290Application Date: 2012-12-20
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Publication No.: US09327338B2Publication Date: 2016-05-03
- Inventor: Darl G. Boysel , Robert E. Dick , Gary L. Myers , David J. McNeish
- Applicant: ALCOA INC.
- Applicant Address: US PA Pittsburgh
- Assignee: Alcoa Inc.
- Current Assignee: Alcoa Inc.
- Current Assignee Address: US PA Pittsburgh
- Agency: Greenberg Traurig, LLP
- Main IPC: B21D37/00
- IPC: B21D37/00 ; B21D41/04 ; B21D51/26
Abstract:
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.
Public/Granted literature
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