Low differential pressure transducer

Details Low differential pressure transducer Low differential pressure transducer

2008-02-14

2010-06-29

Caputo, Lisa M (Department: 2855)

Measuring and testing

Fluid pressure gauge

Diaphragm

C073S716000, C361S283100

Reexamination Certificate

active

07743662

ABSTRACT:
A pressure transducer has an H-shaped header having a front and a back section. The front and back sections are of equal diameter and are circular. Each front and back section has a depression with a diaphragm covering the depression. Each diaphragm is of equal size and the depressions communicate one with the other via a central channel in the central arm of the H. A pressure sensor communicates with the channel, where the pressure sensor responds to a first pressure applied to the first diaphragm and a second pressure applied to the second diaphragm. The pressure sensor produces an output equal to the difference in pressure. The differential pressure inducer having both diaphragms of the same size and still enabling leads from the sensor to be brought out.

REFERENCES:
patent: 3739315 (1973-06-01), Kurtz et al.
patent: 4133100 (1979-01-01), Myhre
patent: 4222277 (1980-09-01), Kurtz et al.
patent: 4370890 (1983-02-01), Frick
patent: 4376929 (1983-03-01), Myhre
patent: 6330829 (2001-12-01), Kurtz et al.
patent: 6543291 (2003-04-01), Kurtz et al.
patent: 6595066 (2003-07-01), Kurtz et al.
patent: 6813953 (2004-11-01), Baba et al.

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