Measuring and testing – Volume or rate of flow – By measuring vibrations or acoustic energy
Reexamination Certificate
2005-05-24
2005-05-24
Lefkowitz, Edward (Department: 2855)
Measuring and testing
Volume or rate of flow
By measuring vibrations or acoustic energy
Reexamination Certificate
active
06895825
ABSTRACT:
An ultrasonic transducer assembly for helping monitor a fluid flowing through a duct is disclosed herein. The assembly includes: (1) a piezoelectric transducer element having a first contact surface electroplated with a first metallic film layer and an opposite second contact surface electroplated with a second metallic film layer; (2) a housing, configured on and at least partially conterminous with the outer surface of the duct, having a chamber in which the piezoelectric transducer element is situated and thereby substantially enclosed; and (3) means for conducting electrical signals between the electroplated first contact surface of the piezoelectric transducer element and the outside of the housing. In the assembly, the electroplated second contact surface of the piezoelectric transducer element is solder-mounted within the housing such that the piezoelectric transducer element is thereby coupled to the outer surface of the duct in a substantially conterminous fashion.
REFERENCES:
patent: 5637800 (1997-06-01), Finsterwald et al.
patent: 6490228 (2002-12-01), Killam
patent: 6776051 (2004-08-01), Suzuki et al.
Artz & Artz PC
Lefkowitz Edward
Mack Corey D.
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