Pressure gauge

Details Pressure gauge Pressure gauge

1975-12-24

1977-10-18

Woodiel, Donald O.

Measuring and testing

Speed, velocity, or acceleration

With means for retaining reading

G01L 708

Patent

active

040540596

ABSTRACT:
A pressure gauge comprises a gauge vessel filled with an indicating liquid that extends as a column into a reader tube; the gauge vessel has a deflectable wall portion such as a diaphragm that is resiliently biased, as by a plate spring pack in the gauge vessel, to resist inwards deflection under fluid pressure applied to a gauge port to which the deflectable wall portion is exposed. Deflection of the wall portion alters the liquid column length in the reader tube to indicate pressure.
Differential and pressure-summing gauges are disclosed, as well as temperature-compensating arrangements.

REFERENCES:
patent: 1265676 (1918-05-01), Klump
patent: 2105127 (1938-01-01), Petroe
patent: 2296237 (1942-09-01), Allen
patent: 2566369 (1951-09-01), Putman
patent: 3466024 (1969-09-01), Spieth
patent: 3610046 (1971-10-01), Lissau
patent: 3643510 (1972-02-01), Lissau
patent: 3901083 (1975-08-01), Wallace

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