Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1979-05-10
1980-05-27
Swisher, S. Clement
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
73576, G01L 2700
Patent
active
042044227
ABSTRACT:
A pressure measuring device comprises a main solenoid valve of which a first opening is connected to a pipe through which a fluid to be measured flows and of which a second opening is connected to a pressure transducer. A third opening of the main solenoid valve is connected to an auxiliary solenoid valve which causes the third opening to be exposed to the atmosphere during an inspection and which applies the same pressure as that of the fluid to the third opening during a measurement.
REFERENCES:
patent: 476512 (1892-06-01), Bosworth
patent: 4051712 (1977-10-01), Zias
Inoue Yuichiro
Sakaki Masamichi
Swisher S. Clement
Tokyo Shibaura Denki Kabushiki Kaisha
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