Measuring and testing – Liquid level or depth gauge
Patent
1985-12-02
1987-11-03
Frankfort, Charles
Measuring and testing
Liquid level or depth gauge
340621, 29 2535, 310321, 310324, G01F 2322, G01F 2328
Patent
active
047036524
ABSTRACT:
Piezoelectric type liquid level sensor for detecting whether the level of various liquids such as oil of an internal combustion engine, a generator or the like is a predetermined value or higher or not, and method of making the sensor. The sensor is arranged to eliminate the influence of the weight of the lead wires on the vibration element and to facilitate its assembly. The sensor may be provided with a damper member for increasing the sensitivity.
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Itoh Akio
Saitoh Sigeo
Sobue Hideo
Sumi Kazunori
Frankfort Charles
NGK Spark Plug Co. Ltd.
Will Thomas B.
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