Measuring and testing – Fluid pressure gauge – Diaphragm
Reexamination Certificate
2006-09-05
2006-09-05
Lefkowitz, Edward (Department: 2855)
Measuring and testing
Fluid pressure gauge
Diaphragm
C073S724000
Reexamination Certificate
active
07100453
ABSTRACT:
A device for sensing pressure using two flexible diaphragms in which an additional element is added to promote rolling contact of the diaphragm. One embodiment aligns the flexible diaphragms in a non-parallel alignment such that deflection of one flexible diaphragm will roll with respect to the other to provide increased linear capacitive response. In another embodiment a non-conductive spacing element is positioned between the diaphragms to permit rolling contact upon displacement of a diaphragms. These devices are capacitive pressure gauges. One additional embodiment includes a cantilever hinge and rigid polymer disc to convert one diaphragm into a linearly deflecting diaphragm.
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Cabuz Eugen I
Wang Tzu-Yu
Fredrick Kris T.
Honeywell International , Inc.
Lefkowitz Edward
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