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. 14, 2009
Filed:
Nov. 16, 2004
Applicant:
Ikuya Ando, Kariya, JP;
Inventor:
Ikuya Ando, Kariya, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F23Q 7/22 (2006.01); F23Q 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A glow plug includes a sleeve secured by press-fitting to a housing with a ceramic heater held therein. A lead wire exposed from the heater is electrically connected to an inside surface of the sleeve to form a joint portion. The joint portion and a press-fit portion formed between the sleeve and the housing are offset in position relative to each other along an axial direction of the housing. The joint portion is thus kept free from the influence of a load or pressure applied during press-fitting operation to form the press-fit portion. A method of producing such glow plug is also disclosed.