Method of manufacturing a gas sensor

Details Method of manufacturing a gas sensor Method of manufacturing a gas sensor

2007-02-27

2007-02-27

Trinh, Minh (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S593000, C029S592100, C029S595000, C073S023310, C073S031050, C204S424000, C204S428000, C219S121640

Reexamination Certificate

active

10916501

ABSTRACT:
An improved manufacturing method for a gas sensor is provided which is capable of establishing a required hermetic seal in a body of the gas sensor. The method includes preparing a sensor assembly including a housing, an air cover, an insulation porcelain, and a sensor element, pressing the air cover against the housing to fit an end of the air cover on an end of the housing to form an overlap thereof, and welding the air cover to the housing over the overlap. The welding is accomplished while pressing the air cover against the housing, thereby compressing an elastic member in the air cover to establish a hermetic seal between the sensor element and the housing.

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