Dual range rupture disc assembly

Details Dual range rupture disc assembly Dual range rupture disc assembly

1984-01-16

1985-04-23

Marcus, Stephen

Receptacles

Container attachment or adjunct

Pressure relief means

137 68R, B65B 2500

Patent

active

045124914

ABSTRACT:
A two directional rupture disc assembly is provided which serves in a fluid reactor system as a safety relief valve when a critical condition, such as predetermined pressure positive or negative, is encountered. That is, the rupture disc assembly hereof is operatively coupled to a reactor vessel and allows fluid flow in one direction when one reactor system condition is encountered and allows fluid flow in an opposite direction when another reactor system condition is encountered. Thus, under normal conditions, the reactor system operates in a certain pressure range with the assembly hereof in flow blocking disposition, but if a reactor condition outside of the normal operating range is encountered, the assembly ruptures to permit fluid flow in the appropriate direction. Preferably, the rupture disc assembly includes a pair of flat rupture discs and an imperforate membrane between the two discs. Each disc includes an innermost and outermost C-shaped pattern formed by a plurality of serially arranged slots through the respective disc. Advantageously, the discs and membrane are mounted and the patterns manufactured such that the discs rupture adjacent the outermost pattern when one condition is encountered and the discs rupture adjacent the innermost pattern when another condition is encountered.

REFERENCES:
patent: 2224748 (1940-12-01), Sauer
patent: 2553267 (1951-05-01), Nedoh
patent: 3091359 (1963-05-01), Wood
patent: 3484817 (1969-12-01), Wood
patent: 3704807 (1972-12-01), Lidgard
patent: 3834580 (1974-09-01), Ludwig et al.
patent: 4301938 (1981-11-01), Wood et al.
patent: 4434905 (1984-03-01), Ou et al.

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