Method and system for the controlled application of fluid...

Details Method and system for the controlled application of fluid... Method and system for the controlled application of fluid...

2005-10-25

2005-10-25

Cygan, Michael (Department: 2855)

Measuring and testing

With fluid pressure

With ram pressure inducer

C417S345000

Reexamination Certificate

active

06957567

ABSTRACT:
A method and system for the controlled application of fluid pressure of a load, such as a large pipe to be pressure tested utilized small pressure converters which are operated by a common controller at the hydraulic side to fill and pressurize the pipe. One pressure converter is decelerated as it approaches the end of its working stroke while the other pressure converter is accelerated so that the total displacement of the pressurizing fluid remains substantially constant over time.

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