Gas sensor equipped with gas inlet designed to create...

Details Gas sensor equipped with gas inlet designed to create... Gas sensor equipped with gas inlet designed to create...

2007-01-09

2007-01-09

Larkin, Daniel S. (Department: 2856)

Measuring and testing

Gas analysis

Detector detail

C073S023200, C073S023310, C204S424000, C204S428000, C204S430000

Reexamination Certificate

active

11055012

ABSTRACT:
A gas sensor equipped with a protective gas cover which defines therein a gas chamber to which a sensor element is exposed. The protective gas cover has gas inlet holes through which gas to be measured is admitted. The protective cover also has dimples formed adjacent the gas inlet holes, respectively, which are designed to avoid a direct hit of a flow of the gas on the sensor element and minimize the concentration of thermal stress around the gas inlet holes. In an alternative form, the gas inlet holes are formed in the dimples, respectively.

REFERENCES:
patent: 4507192 (1985-03-01), Ebizawa et al.
patent: 6279376 (2001-08-01), Yamada et al.
patent: 6346179 (2002-02-01), Makino et al.
patent: 2003/0121782 (2003-07-01), Atsumi et al.
patent: 19924319 (2000-12-01), None
patent: 1236998 (2002-09-01), None
patent: 2001-99807 (2001-04-01), None
patent: WO 00/73779 (1999-05-01), None
French Preliminary Search Report dated Apr. 12, 2006.

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