Measuring and testing – Fluid pressure gauge – U-tube liquid column
Patent
1982-09-27
1984-06-26
Woodiel, Donald O.
Measuring and testing
Fluid pressure gauge
U-tube liquid column
G01L 718
Patent
active
044558767
ABSTRACT:
A precision manometer gauge which locates a zero height and a measured height of liquid using an open tube in communication with a reservoir adapted to receive the pressure to be measured. The open tube has a reference section carried on a positioning plate which is moved vertically with machine tool precision. Double scales are provided to read the height of the positioning plate accurately, the reference section being inclined for accurate meniscus adjustment, and means being provided to accurately locate a zero or reference position.
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Bellman Robert A.
McPherson Malcolm J.
Carnahan L. E.
Esposito Michael F.
Gaither Roger S.
The United States of America as represented by the United States
Woodiel Donald O.
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