Measuring and testing – Volume or rate of flow – By measuring vibrations or acoustic energy
Reexamination Certificate
2011-06-28
2011-06-28
Patel, Harshad (Department: 2855)
Measuring and testing
Volume or rate of flow
By measuring vibrations or acoustic energy
C702S045000
Reexamination Certificate
active
07966893
ABSTRACT:
A method comprises, without ceasing flow of fluid through a flow meter, transmitting an ultrasonic signal of a first frequency through the fluid, adjusting the first frequency to a second frequency, and transmitting another ultrasonic signal of the second frequency through the fluid.
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International Application No. PCT/US2010/036134, Search Report and Written Opinion dated Dec. 24, 2010, 10 pages.
Conley & Rose, P.C.
Daniel Measurement and Control, Inc.
Patel Harshad
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