Measuring and testing – Vibration – By mechanical waves
Patent
1990-01-22
1990-12-18
Myracle, Jerry W.
Measuring and testing
Vibration
By mechanical waves
73168, G01N 2900
Patent
active
049777785
ABSTRACT:
A method and apparatus for testing the operating condition of a check valve directs sound waves into the valve chamber of a check valve assembly and utilizes the collected signals of the reflected sound waves to generate various time lapse data corresponding to the valve disk position and movement, such time lapse data providing an analysis of the condition of the valve assembly.
REFERENCES:
patent: 4452074 (1984-06-01), Shelomentser et al.
patent: 4542652 (1985-09-01), Reuter
patent: 4543649 (1985-09-01), Head et al.
McMennamy John A.
Nafziger Steven
Isaf Louis T.
Movats Incorporated
Myracle Jerry W.
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