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:
Jun. 20, 2000
Filed:
Nov. 10, 1998
Joseph M Lepley, Girard, OH (US);
Altronic, Inc., Girard, OH (US);
Abstract
A spark plug for an internal combustion engine comprises a tubular metal ground shell, a first electrode passing through the interior of the shell, a ceramic insulator sealing the space between the shell and the first electrode and a second electrode extending from the shell to define a gap with the first electrode. The ratio of effective distance along the surface of the ceramic defining the potential surface discharge path to the distance between the first and second electrodes being selected to prevent surface discharge as the spark gap erodes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile