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:
May. 11, 2021
Filed:
May. 04, 2020
Applicant:
Caterpillar Inc., Peoria, IL (US);
Inventor:
James Jay Cress, Lafayette, IN (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01T 13/08 (2006.01); F02F 1/24 (2006.01); H01T 13/10 (2006.01); H01T 13/20 (2006.01); F02F 11/00 (2006.01);
U.S. Cl.
CPC ...
F02F 1/242 (2013.01); F02F 11/002 (2013.01); H01T 13/08 (2013.01); H01T 13/10 (2013.01); H01T 13/20 (2013.01);
Abstract
A spark plug includes a body of revolution defining a longitudinal axis. The body has a forward axial portion with external threads, and an intermediate axial collar portion defining an axially downwardly facing sealing surface. A first electrode and a second electrode extend from the forward axial portion and define a spark gap therebetween. A hex drive portion is disposed axially above the intermediate collar portion. A gasket crush limiter includes a wall that extends axially downwardly from the intermediate axial collar portion, defining an annular pocket formed by the wall and the forward axial portion.