The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 12, 2021
Filed:
Dec. 04, 2019
Applicant:
Federal-mogul Ignition Gmbh, Neuhaus-Schierschnitz, DE;
Inventor:
Werner Niessner, Steinheim, DE;
Assignee:
FEDERAL-MOGUL IGNITION GMBH, Neuhaus-Schierschni, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01T 13/52 (2006.01); F02B 19/18 (2006.01); F02B 19/12 (2006.01); H01T 13/02 (2006.01); H01T 13/54 (2006.01); H01T 13/34 (2006.01);
U.S. Cl.
CPC ...
H01T 13/52 (2013.01); F02B 19/12 (2013.01); F02B 19/18 (2013.01); H01T 13/02 (2013.01); H01T 13/34 (2013.01); H01T 13/54 (2013.01);
Abstract
A spark plug for generating an axially extending surface spark between a sparking tip of the center electrode and a seal supporting sparking projection located at an internal step portion of the metal shell. In one embodiment, the spark plug is a pre-chamber spark plug having a pre-chamber cap attached to a distal end of the metal shell. The spark plug can allow for unobstructed flame propagation through the pre-chamber, without having the flame obstructed by narrow gaps or a separate ground electrode.