Electrical control mercury monometer

Details Electrical control mercury monometer Electrical control mercury monometer

1981-08-03

1983-04-26

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

U-tube liquid column

73298, G01L 900

Patent

active

043809332

ABSTRACT:
A flat plate manometer includes a rectangular mercury column having calibration scales and a plurality of closely spaced stainless steel contacts disposed along the column. The mercury closes a circuit between a common contact and the column contacts as the mercury rises. The manometer is fabricated from acrylic plastic to provide a lightweight, low cost device. The input and output ports include microporous filters to prevent accidental loss of mercury.

REFERENCES:
patent: 1638814 (1927-08-01), Epstein
patent: 2398375 (1946-04-01), Heenan

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