Ceramic heater with ring member electrically connecting the...

Details Ceramic heater with ring member electrically connecting the... Ceramic heater with ring member electrically connecting the...

2006-04-25

2006-04-25

Jeffery, John A. (Department: 3742)

Electric heating

Heating devices

Resistive element: igniter type

C219S544000, C219S541000, C123S14500A

Reexamination Certificate

active

07034253

ABSTRACT:
A heater including: a rod-shaped ceramic heater including: a ceramic heater body extending in an axial direction and having a heating-element at its leading end portion for generating heat when energized; and first and second energizing lead terminals extending from the heating element and exposed to an outer circumference of a trailing end side of the ceramic heater body; a cylindrical outer cylinder for holding the ceramic heater while protruding a leading end portion and a trailing end portion of the ceramic heater; and a core rod arranged on said trailing end side of the ceramic heater in an axial direction and connected electrically with the first lead terminal, wherein the heater further includes: a ring member including: a ring leading end portion fixed by a tight fitting on an outer circumference of a trailing end side of the ceramic heater and connected electrically with the first lead terminal; and a ring trailing end portion protruding backward from a trailing end of the ceramic heater; and a metallic lead for connecting the ring trailing end portion and the core rod electrically.

REFERENCES:
patent: 6689990 (2004-02-01), Taniguchi et al.
patent: 6737612 (2004-05-01), Taniguchi et al.
patent: 6881930 (2005-04-01), Yoshikawa et al.
patent: 6900412 (2005-05-01), Taniguchi et al.
patent: 9-42671 (1997-02-01), None
patent: 2002-364841 (2002-12-01), None
patent: 2002-364843 (2002-12-01), None
patent: 2003-56848 (2003-02-01), None
patent: 2003-74849 (2003-03-01), None

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