Electrical resistors – Resistance value responsive to a condition – Gas – vapor – or moisture absorbing or collecting
Patent
1990-05-14
1991-08-13
Lateef, Marvin M.
Electrical resistors
Resistance value responsive to a condition
Gas, vapor, or moisture absorbing or collecting
73 3105, H01C 700
Patent
active
050399721
ABSTRACT:
An oxygen sensor has a planar sensor element which generates electromotive forces or varies an electric resistance between electrodes formed on opposite surfaces of the planar sensor element depending upon concentrations of oxygen in exhaust gases, a metallic housing member for housing the sensor element therein, a ceramic powder placed around the planar sensor element in the metallic housing member and adapted to fix the planar sensor element and form a gas-sealed section and ceramic supporters for compacting the ceramic powder under a given pressure therebetween. The portion of at least one of the ceramic supporters which contacts the ceramic powder is provided with a projection.
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patent: 4958514 (1990-09-01), Takami et al.
Kato Nobuhide
Katsu Masanori
Lateef Marvin M.
NGK Insulators Ltd.
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