FLOW CONTROL SCREEN ASSEMBLY HAVING REMOTELY DISABLED REVERSE FLOW CONTROL CAPABILITY

A FLOW CONTROL SCREEN (100) HAVING A FLOW PATH BETWEEN THE INTERIOR OF A BASE PIPE (102) AND A FILTER MEDIUM (112). A VALVE ASSEMBLY, INCLUDING A VALVE PLUG, A BALL RETAINER, AND A PISTON BODY (148) WITH A COLLET ASSEMBLY (156) IS DISPOSED WITHIN THE FLOW PATH IN AN OPENING OF A HOUSING DISPOSED ABO...

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Bibliographische Detailangaben
1. Verfasser:	VEIT,JAN
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, ORDISTRIBUTING WATER LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SEWERAGE TAPS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS THERMAL INSULATION IN GENERAL VALVES WATER SUPPLY WEAPONS
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Beschreibung
Zusammenfassung:	A FLOW CONTROL SCREEN (100) HAVING A FLOW PATH BETWEEN THE INTERIOR OF A BASE PIPE (102) AND A FILTER MEDIUM (112). A VALVE ASSEMBLY, INCLUDING A VALVE PLUG, A BALL RETAINER, AND A PISTON BODY (148) WITH A COLLET ASSEMBLY (156) IS DISPOSED WITHIN THE FLOW PATH IN AN OPENING OF A HOUSING DISPOSED ABOUT THE BASE PIPE (102). THE COLLET ASSEMBLY (156) IS RADIALLY OUTWARDLY CONSTRAINED BY A RADIALLY REDUCED SECTION OF THE OPENING IN A FIRST POSITION PREVENTING ENTRY OF THE VALVE PLUG THEREIN AND RADIALLY OUTWARDLY UNCONSTRAINED BY THE RADIALLY REDUCED SECTION IN A SECOND POSITION. REVERSE FLOW IS INITIALLY PREVENTED AS INTERNAL DIFFERENTIAL PRESSURE SEATS THE VALVE PLUG ON A SEAT OF THE OPENING AND CAUSES THE PISTON BODY (148) TO SHIFT TO THE SECOND POSITION UPON REACHING A PREDETERMINED THRESHOLD. THEREAFTER, EXTERNAL DIFFERENTIAL PRESSURE CAUSES THE VALVE PLUG TO ENTER THE PISTON BODY (148) AND CONTACT THE BALL RETAINER, THEREBY ALLOWING REVERSE FLOW. THE MOST SUITABLE DRAWING: