Pressure sensor

Details Pressure sensor Pressure sensor

2007-12-25

2007-12-25

Allen, Andre J. (Department: 2855)

Measuring and testing

Fluid pressure gauge

Diaphragm

C073S736000

Reexamination Certificate

active

11480991

ABSTRACT:
A pressure sensor has a case having a first side and a second side, and a sensing portion mounted to the case. A first diaphragm is disposed on the first side of the case such that a first chamber is defined. A second diaphragm is disposed on the second side of the case such that a second chamber is defined. The first chamber and the second chamber are filled with a pressure medium such as an oil. The case forms an introduction passage for introducing the pressure medium into the first chamber and the second chamber. In a condition that the first chamber and the second chamber are filled with the pressure medium, the introduction passage is sealed by a sealing part so that the first chamber and the second chamber are separated from each other and from an outside of the case.

REFERENCES:
patent: 6813953 (2004-11-01), Baba et al.

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