Measuring and testing – Fluid pressure gauge – Diaphragm
Patent
1996-03-12
1998-01-13
Dougherty, Elizabeth L.
Measuring and testing
Fluid pressure gauge
Diaphragm
73756, G01L 702, G01L 700
Patent
active
057082103
ABSTRACT:
A pressure monitoring isolating device for monitoring the pressure of fluid in a pipeline. The device comprises an annular housing that is axially insertable in the pipeline between two ends thereof. The annular housing has a central opening through which fluid in the pipeline flows. The central opening defines an inner diameter of the annular housing. Secured to the annular housing around the central opening thereof is a flexible sleeve member. An annular fluid chamber is positioned around and in communication with the outer surface of the sleeve member. A sensing fluid cavity extends radially from the annular fluid chamber toward the outer periphery of the annular housing. The annular fluid chamber and the sensing fluid cavity is filled with a sensing fluid. An elastomeric member seals the top end of the sensing fluid cavity. A pressure gauge assembly is releasably secured around the upper end of the sensing fluid cavity. The pressure gauge assembly includes a hollow needle extending downwardly therefrom and a pressure gauge. The needle extends into the sensing fluid cavity through the elastomeric member.
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Amrozowicz Paul D.
Dougherty Elizabeth L.
Lehrer Norman E.
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