Invention Grant
- Patent Title: Spark ignition device and ground electrode therefor and methods of construction thereof
- Patent Title (中): 火花点火装置及其接地电极及其构造方法
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Application No.: US12780166Application Date: 2010-05-14
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Publication No.: US08288930B2Publication Date: 2012-10-16
- Inventor: Frederick J. Quitmeyer , Kevin J. Kowalski , Mark S. McMurray
- Applicant: Frederick J. Quitmeyer , Kevin J. Kowalski , Mark S. McMurray
- Applicant Address: US MI Southfield
- Assignee: Federal-Mogul Ignition Company
- Current Assignee: Federal-Mogul Ignition Company
- Current Assignee Address: US MI Southfield
- Agency: Dickinson Wright, PLLC
- Agent Robert L. Stearns
- Main IPC: H01T13/20
- IPC: H01T13/20 ; H01J1/00

Abstract:
A spark ignition device, ground electrode therefor, and methods of construction thereof are provided. The spark ignition device includes a generally annular ceramic insulator with a metal shell surrounding at least a portion of the ceramic insulator. A center electrode is received at least in part in the ceramic insulator and a ground electrode extends from the shell to a free end portion. A firing tip is attached adjacent the free end portion of the ground electrode to provide a spark gap between the center electrode and the firing tip. The free end portion is at least partially bounded by at least one “as laser cut” peripheral side extending adjacent the firing tip.
Public/Granted literature
- US20110279009A1 SPARK IGNITION DEVICE AND GROUND ELECTRODE THEREFOR AND METHODS OF CONSTRUCTION THEREOF Public/Granted day:2011-11-17
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