Pressure sensor with a diaphragm which has plural...

Details Pressure sensor with a diaphragm which has plural... Pressure sensor with a diaphragm which has plural...

2006-06-13

2006-06-13

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Fluid pressure gauge

Diaphragm

Reexamination Certificate

active

07059193

ABSTRACT:
To improve the characteristics of a portion which can be represented by an approximate first-order line (so-called linearity) in the relation between pressure and diaphragm displacement. To equalize the pressure-applying area/volume of a diaphragm when plural ring-shaped reinforcement ribs are in contact with said cover (no load condition when no pressure is applied to the diaphragm) and the pressure-applying area/volume of a diaphragm when said diaphragm is apart from said cover (the diaphragm is displaced due to pressure load).

REFERENCES:
patent: S52-47094 (1977-10-01), None
patent: H11-23394 (1999-01-01), None
patent: H13-170393 (2001-06-01), None

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