Differential pressure measuring apparatus

Details Differential pressure measuring apparatus Differential pressure measuring apparatus

2007-03-13

2007-03-13

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Fluid pressure gauge

Diaphragm

C073S715000, C073S753000

Reexamination Certificate

active

11042238

ABSTRACT:
It is related to the shape of a back surface formed to allow a pre-loading diaphragm to become deformed at a threshold pressure value. A differential pressure measuring apparatus has the pre-loading diaphragm which becomes deformed to prevent sensors from being broken when pressure higher than a threshold pressure value is applied, wherein only convex parts of the pre-loading diaphragm are in close contact with convex parts of the back surface of a body respectively.

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