Sensor

Details Sensor Sensor

2011-04-12

2011-04-12

Fitzgerald, John (Department: 2856)

Measuring and testing

Gas analysis

Gas of combustion

Reexamination Certificate

active

07921692

ABSTRACT:
A sensor of the present invention includes a sensor element; a metallic shell; an outer tube member fixed to a rear end portion of the metallic shell; and a protective outer tube member covering an outer surface of the outer tube member. The outer tube member has a seal portion being circumferentially in contact with the protective outer tube member directly or via another member, and a front-side separation portion located frontward of the seal portion and spaced apart from and facing the protective outer tube member. A metal coating layer (plating layer) is formed on the outer surface of at least the front-side separation portion of the outer tube member.

REFERENCES:
patent: 4362605 (1982-12-01), Bozon et al.
patent: 4507192 (1985-03-01), Ebizawa et al.
patent: 4655892 (1987-04-01), Satta et al.
patent: 4741816 (1988-05-01), Nishio et al.
patent: 5880353 (1999-03-01), Graser et al.
patent: 6360581 (2002-03-01), Murase et al.
patent: 7559224 (2009-07-01), Yoshikawa et al.

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