Measuring and testing – Volume or rate of flow – Thermal type
Patent
1990-12-03
1992-10-20
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
Thermal type
7320425, G01F 168
Patent
active
RE0341045
ABSTRACT:
The bobbin (21) of the heating resistor (1) is made by zirconia or glass fiber. On the surface of the bobbin, a platinum film (31) or a platimum wire (23) are formed. At both ends of the heating resistor, the heating resistor is supported by a pair of supporting conductors (25).
REFERENCES:
patent: 4361597 (1982-11-01), Arima
patent: 4559814 (1985-12-01), Sato et al.
patent: 4561303 (1985-12-01), McCarthy
Nishimura Yutaka
Takahashi Minoru
Tokuda Hiroastu
Watanabe Izumi
Goldstein Herbert
Hitachi , Ltd.
Hitachi Automotive Engineering Co. Ltd.
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