Gas sensor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 31, 2002
Grant Date -
Jun 7, 2001
app pub date -
Dec 5, 2000
filing date -
Dec 6, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A gas sensor including a detecting element having electrodes on first and second surfaces of an oxygen ion conductive solid-state electrolyte; a main fitting having a fitting portion to be fitted into a mounting hole formed on a wall of the pipe defining a flow path for a gas-to-be-measured for holding the detecting element in such manner that the first surface is disposed via the mounting hole at an inner position of the pipe with respect to the fitting portion; a cylindrical cover of which one end is connected to an outer position of the pipe with respect to the fitting portion of the main fitting and the other end is provided with a cylindrical sealing member having an air hole for introducing air to the second surface on one end and a through hole through which a lead connected to both electrodes of the detecting element passes on the other end; and a water repellant filter having gas permeability for closing the air hole, characterized in that the water repellant filter is formed in a sheet shape and mounted on the air hole by means of an inserting member that can be inserted in the air hole.
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