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:
Dec. 14, 2004
Filed:
Mar. 15, 2002
Applicant:
Inventors:
Masato Taniguchi, Aichi, JP;
Takayuki Otani, Aichi, JP;
Assignee:
NGK Spark Plug Co., Ltd., Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F23Q 7/00 ;
U.S. Cl.
CPC ...
F23Q 7/00 ;
Abstract
A glow plug in which a ceramic heater is fixedly disposed in a metallic, cylindrical member such that a front end thereof projects from a front end of the cylindrical member, and the resultant cylindrical member is fixedly disposed in a plug body such that the front end of the cylindrical member projects from a front end of the body, and which readily provides a mounting structure such that, even when loosening arises at a joint between the body and the cylindrical member after the glow plug is mounted onto a cylinder head, the cylindrical member is prevented from dropping into the interior of an engine.