Measuring and testing – Fluid pressure gauge – With pressure and/or temperature compensation
Patent
1985-05-24
1987-01-27
Woodiel, Donald O.
Measuring and testing
Fluid pressure gauge
With pressure and/or temperature compensation
73714, 374143, G01L 1904
Patent
active
046386718
ABSTRACT:
A checker for air conditioner with a pressure gauge, which comprises an auxiliary dial plate placed on the pressure gauge panel rotatable coaxially therewith. The auxiliary dial plate has an indicator zone and a temperature correction graduation arranged in such a manner, that the existing stand of charge of the coolant is indicated by the pressure gauge needle directly on the indicator zone, when the ambient temperature is set on the temperature correction graduation at a reference mark disposed on the gauge panel adjacent the temperature correction graduation.
REFERENCES:
patent: 2239221 (1941-04-01), Dimmock
Daikyo Service Station Development Co. Ltd.
Woodiel Donald O.
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