Invention Grant
US08128446B2 Method for manufacturing a spark plug insulator including steps for forming a through hole therein
有权
一种用于制造火花塞绝缘体的方法，包括在其中形成通孔的步骤
- Patent Title: Method for manufacturing a spark plug insulator including steps for forming a through hole therein
- Patent Title (中): 一种用于制造火花塞绝缘体的方法，包括在其中形成通孔的步骤
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Application No.: US12405462Application Date: 2009-03-17
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Publication No.: US08128446B2Publication Date: 2012-03-06
- Inventor: Toshitaka Honda , Takamitsu Mizuno , Shinichi Sakurai
- Applicant: Toshitaka Honda , Takamitsu Mizuno , Shinichi Sakurai
- Applicant Address: JP Aichi
- Assignee: NGK Spark Plug Co., Ltd.
- Current Assignee: NGK Spark Plug Co., Ltd.
- Current Assignee Address: JP Aichi
- Agency: Kusner & Jaffe
- Priority: JPP2008-072000 20080319; JPP2008-329107 20081225
- Main IPC: H01T21/02
- IPC: H01T21/02 ; F02B19/00
Abstract:
A method for manufacturing an insulator for a spark plug is provided. The method includes: a preparing step; a press pin arranging step; a powder filling step after the press pin arranging step; a cavity blocking step after the powder filling step; a compression molding step after the cavity blocking step; a die releasing step after the compression molding step; and a press pin removing step after the die releasing step.
Public/Granted literature
- US20090239437A1 INSULATOR FOR SPARK PLUG, AND METHOD FOR MANUFACTURING SPARK PLUG Public/Granted day:2009-09-24
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