Measuring and testing – Fluid pressure gauge – Diaphragm
Reexamination Certificate
2008-03-11
2008-03-11
Allen, Andre J. (Department: 2855)
Measuring and testing
Fluid pressure gauge
Diaphragm
C073S754000
Reexamination Certificate
active
11523033
ABSTRACT:
A pressure sensor includes a casing formed with a first case and a second case that has a pressure introduction hole for introducing a measurement object, a pressure sensing portion in the casing and a metal diaphragm disposed between an end face of the first case and a reception face of the second case. The measurement object is introduced into a subspace that is formed as an expanded end of the pressure introduction hole in the second case for measurement of pressure by transmitting the pressure through the diaphragm to the pressure sensing portion, and the pressure sensing hole has an orifice that reduces a cross-sectional area of the pressure sensing hole.
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Allen Andre J.
DENSO CORPORATION
Posz Law Group , PLC
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