Fluid pressure gauge
First Claim
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1. A FLUID PRESSURE GUAGE COMPRISING A FLUID PRESSURE SENSING MEANS, A CAVITY TYPE ELECTRIC WAVE RESONATOR, MEANS CONNECTING SAID SENSING MEANS AND SAID RESONATOR FOR VARYING A DIMENSION OF THE CAVITY OF SAID RESONATOR IN ACCORDANCE WITH CHANGES IN FLUID PRESSURE, AN OSCILLATOR, MEANS UTILIZING SAID RESONATOR FOR CONTROLLING THE FREQUENCY OF SAID OSCILLATOR, A SECOND OSCILLATOR, MEANS DEPENDENT UPON A REFERENCE PRESSURE FOR CONTROLLING THE FREQUENCY OF SAID SECOND OSCILLATOR, MEANS CONNECTED WITH
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1 Claim
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1. A FLUID PRESSURE GUAGE COMPRISING A FLUID PRESSURE SENSING MEANS, A CAVITY TYPE ELECTRIC WAVE RESONATOR, MEANS CONNECTING SAID SENSING MEANS AND SAID RESONATOR FOR VARYING A DIMENSION OF THE CAVITY OF SAID RESONATOR IN ACCORDANCE WITH CHANGES IN FLUID PRESSURE, AN OSCILLATOR, MEANS UTILIZING SAID RESONATOR FOR CONTROLLING THE FREQUENCY OF SAID OSCILLATOR, A SECOND OSCILLATOR, MEANS DEPENDENT UPON A REFERENCE PRESSURE FOR CONTROLLING THE FREQUENCY OF SAID SECOND OSCILLATOR, MEANS CONNECTED WITH
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Current AssigneeGeorge B. Miller
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Original AssigneeGeorge B. Miller
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InventorsMiller, George B.
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Application NumberUS04/282,987Time in Patent Office1,096 DaysField of SearchUS Class Current73/702CPC Class CodesG01L 11/04 by acoustic means
