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:
Oct. 10, 2017
Filed:
Feb. 07, 2012
Yoshihiro Nakamura, Iwakura, JP;
Shunsuke Maeda, Toyota, JP;
Tadashi Watanabe, Komaki, JP;
Masayoshi Matsui, Ichinomiya, JP;
Yoshihiro Nakamura, Iwakura, JP;
Shunsuke Maeda, Toyota, JP;
Tadashi Watanabe, Komaki, JP;
Masayoshi Matsui, Ichinomiya, JP;
NGK SPARK PLUG CO., LTD., Aichi, JP;
Abstract
A glow plug including a substantially cylindrical housing extending in an axial direction; a rod-shaped heater unit having a front end protruding from the front end of the housing and movable in the axial direction; a connecting member connecting the heater unit to the housing within the housing and allowing the heater unit to move in the axial direction; and a pressure sensor that detects pressure received by the heater unit. The heater unit has a large-diameter portion at the rear end thereof and a small-diameter portion frontward of the large-diameter portion and having a diameter smaller than the diameter of the large-diameter portion. The connecting member connects the small-diameter portion of the heater unit to the housing within the housing.