Measuring and testing – Liquid level or depth gauge – Thermal type
Patent
1984-05-15
1986-06-24
Frankfort, Charles
Measuring and testing
Liquid level or depth gauge
Thermal type
340622, 331267R, G01F 2322, G08B 2100
Patent
active
045961417
ABSTRACT:
An electrically operated oil level gauge is composed of a flexible elongate bar whose one end section is provided with an oil level sensing element such as a thermistor. Additionally, a flexible elongate printed-wiring film is adhered on the surface of the flexible elongate bar so as to electrically connect the sensing element with a lead wire through which an electric current is supplied to the sensing element, thereby rendering the oil level gauge axially flexible while effectively preventing lead wire troubles.
REFERENCES:
patent: 2705372 (1955-04-01), Cornell
patent: 2780692 (1957-02-01), Hinojosa
patent: 3098914 (1963-07-01), Giannino
patent: 3147554 (1964-09-01), Beattie
patent: 3488855 (1970-01-01), Howe
patent: 3876964 (1975-04-01), Balaster et al.
patent: 4186604 (1980-02-01), Mattila
patent: 4266344 (1981-05-01), Richardson
patent: 4313102 (1982-01-01), Broetto
patent: 4476714 (1984-10-01), Barry et al.
Frankfort Charles
Kabushiki Kaisha Tsuchiya Seisakusho
Will Thomas B.
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