Pressure and flow regulators used in commercial and industrial service; and pilots used for pressure control, namely, sensing upstream and downstream pressure and sending a signal to a pressure and flow regulator used in commercial and industrial service

'commerci':7,35 'control':16 'downstream':21 'flow':3,31 'industri':9,37 'name':17 'pilot':12 'pressur':1,15,22,29 'regul':4,32 'send':24 'sens':18 'servic':10,38 'signal':26 'upstream':19 'use':5,13,33

Metal pressure vessel for installation on a pipeline to receive surges of liquid that are in the pipeline, said pressure vessel functions to attenuate the pressure and volumetric surges in the pipeline and thereby protect the pipeline from excessive pressure

'attenu':24 'excess':39 'function':22 'instal':5 'liquid':13 'metal':1 'pipelin':8,18,32,37 'pressur':2,20,26,40 'protect':35 'receiv':10 'said':19 'surg':11,29 'therebi':34 'vessel':3,21 'volumetr':28

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