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:
Jul. 19, 1983
Filed:
Dec. 01, 1980
Horst Bergmann, Esslingen, DE;
Daimler-Benz Aktiengesellschaft, Stuttgart, DE;
Abstract
A spark plug for internal combustion engines, especially a spark plug deeply arranged in a spark plug recess of the engine. The spark plug includes a mounting portion, a center electrode, and an insulating body. An extension arrangement is adapted to be attached to the spark plug for facilitating access thereto. The extension arrangement includes a center electrode, an insulating body, and a tubular jacket. The tubular jacket is provided at a first end with an inner cross section corresponding to a cross section of the mounting portion of the spark plug, with the inner cross section being adapted to be mounted over the mounting portion of the spark plug. A second end of the tubular jacket is provided with a further mounting portion.