Measuring and testing – Fluid pressure gauge – Diaphragm
Reexamination Certificate
2005-04-19
2005-04-19
Lefkowitz, Edward (Department: 2855)
Measuring and testing
Fluid pressure gauge
Diaphragm
C073S717000, C073S715000, C073S753000
Reexamination Certificate
active
06880405
ABSTRACT:
A differential pressure indicator has a housing with at least two ports in the housing. One port receives a first pressure, and the second port receives a second pressure. A pressure resistive device is placed between the first port and the second port. The pressure resistive device changes its position when the first pressure exceeds the second pressure by a predetermined amount. A magnet is coupled to the pressure resistive device. A digital displacement sensor senses the position of the magnet. The digital displacement sensor is in communication with an electronic indicator. The electronic indicator activates when the first pressure exceeds the second pressure by a predetermined amount.
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Moscaritolo Daniel K.
Mouhebaty Bijan
Sandoval Diaz Fermin Alejandro
Jenkins Jermaine
Lefkowitz Edward
PTI Technologies, Inc.
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