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:
Feb. 12, 2013
Filed:
Jul. 18, 2007
Thomas Kaiser, Aranjuez, ES;
Hermann Kersting, Ludwigsburg, DE;
Dirk Scholz, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A spark plug for an internal combustion engine, including an electrical connecting arrangement on a connection-side end, an end on the combustion-chamber side pointing toward a combustion chamber, an insulator and a housing having a thread for attaching the spark plug to an engine component, a first sealing area and a second sealing area being provided between the insulator and the housing, the first sealing area being situated closer to the connection-side end and the second sealing area being situated closer to the end on the combustion-chamber side, a tool engagement area for transmitting a torque to the spark plug for fitting or removing the spark plug being situated in an area of the spark plug which lies between the connection-side end and the first sealing area.