Rupture disc having stress concentrating feature

A bulged, forward-acting rupture disc (10) and a pressure relief device (38) incorporating a rupture disc (10), having a line of opening (28) formed in the transition region (26) of the disc between the bulged section (12) and flange section (14) are provided. The line of opening (28) is a stress-co...

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Bibliographische Detailangaben
Hauptverfasser:	Hibler, III, Donald Ray, Johnson, Travis, Krebill, Michael D
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING CLADDING OR PLATING BY SOLDERING OR WELDING COCKS CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING 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 HEATING LIGHTING MACHINE TOOLS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR MILLING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TAPS THERMAL INSULATION IN GENERAL TRANSPORTING VALVES WEAPONS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	A bulged, forward-acting rupture disc (10) and a pressure relief device (38) incorporating a rupture disc (10), having a line of opening (28) formed in the transition region (26) of the disc between the bulged section (12) and flange section (14) are provided. The line of opening (28) is a stress-concentrating feature that, in conjunction with a stress-intensifying edge (68) located on an associated outlet ring (42), facilitates opening of the disc (10) when exposed to a predetermined pressure acting upon the concave face (20) of the bulged section (12).