Measuring and testing – Fluid pressure gauge – U-tube liquid column
Patent
1997-02-24
1999-04-20
Chilcot, Richard
Measuring and testing
Fluid pressure gauge
U-tube liquid column
G01L 718
Patent
active
058958622
ABSTRACT:
A dual-action disconnect valve mechanism for a double column manometer that simultaneously disconnects both tubes of the manometer from external pressure regions or sources, and a fluid displacement reservoir conveniently adjustable for varying the device's reservoir capacity and the height of liquid in the tubes, this adjustment being by a screw type adjustment which easily and conveniently achieves an accurate condition of the liquid levels being substantially exactly at the zero calibration marking. The concepts provide that supplying the manometer liquid at a precise height along the calibration scale without having to move the scale relative to the tubes.
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Amrozowicz Paul D.
Chilcot Richard
Spray Robert A.
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