Measuring and testing – Fluid pressure gauge – Piston
Patent
1983-11-03
1985-07-09
Woodiel, Donald O.
Measuring and testing
Fluid pressure gauge
Piston
G01L 716, G01L 910
Patent
active
045274304
ABSTRACT:
The transducer device disclosed herein is designed for measuring the pressure of a moving fluid stream. The device includes a body member with a lengthwise bore therein and a pressure orifice in communication with the bore. Positioned in the bore is a one-piece piston consisting of a rod segment, a first stem segment extending from one end of the rod, a base segment at the opposite end of the rod, and another stem segment which extends from the base. The base is slideable in the bore of the body and there is an annulus section between the rod segment and the bore. A linear spring means is fitted over the rod, such that it occupies the annulus section. Ahead of the first stem is a sensor unit, which connects into a pressure indicator, for visually indicating pressure values. In operation, the body is mounted on a structure, such as a transfer line, which carries a fluid under pressure. The pressure orifice is in direct communication with the pressurized fluid, so that any change in the fluid pressure causes the sensor unit to produce an electrical signal. This signal is picked up by the indicator and displayed as units of pressure.
REFERENCES:
patent: 2044005 (1936-06-01), Klein et al.
patent: 3442134 (1969-05-01), Bennett et al.
patent: 3670576 (1972-06-01), Corry
Clausen V. Dean
The Dow Chemical Company
Woodiel Donald O.
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