Invention Grant
- Patent Title: Method of making a spark plug
- Patent Title (中): 制作火花塞的方法
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Application No.: US13315886Application Date: 2011-12-09
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Publication No.: US08348709B1Publication Date: 2013-01-08
- Inventor: Eric Passman , Martin Carlin Baker , Jeffrey Boehler
- Applicant: Eric Passman , Martin Carlin Baker , Jeffrey Boehler
- Applicant Address: US IL Lake Forest
- Assignee: Fram Group IP LLC
- Current Assignee: Fram Group IP LLC
- Current Assignee Address: US IL Lake Forest
- Agency: Barnes & Thornburg LLP
- Main IPC: H01J9/00
- IPC: H01J9/00

Abstract:
A method of making a spark plug includes providing a metal shell, an insulator at least partially disposed in the metal shell, a ground electrode coupled to the metal shell, and a center electrode disposed within the insulator. The method also includes depositing a tip substance on the spark plug to form an electrode tip.
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