Rupture disc pressure relief device

Details Rupture disc pressure relief device Rupture disc pressure relief device

1976-08-09

1978-03-21

Schwadron, Martin P.

Receptacles

Container attachment or adjunct

Pressure relief means

137 68R, F16K 1740

Patent

active

040798542

ABSTRACT:
A safe pressure relief assembly of the rupture disc type guards against pressure differentials beyond a predetermined range extending both above and below zero and includes a positive relief disc which is perforated to permit negative flow without rupturing, a sealing disc normally blocking the perforations, a cutting member positioned in spaced relation to the sealing disc and extending a substantial transverse distance thereacross and a sealing disc support member having a stay arrangement projecting into negative supporting engagement with the sealing disc, the stay arrangement having a resistance to collapse sufficient to retain the sealing disc out of contact with the cutting member only up to a predetermined negative pressure. The subcombination of sealing disc, stay arrangement and cutting member is separately useful, especially as a very low pressure relief device.

REFERENCES:
patent: RE26102 (1966-10-01), Summers et al.
patent: 2954897 (1960-10-01), Hansen et al.
patent: 3445032 (1969-05-01), Raidl et al.
patent: 3698598 (1972-10-01), Wood et al.
patent: 3834581 (1974-09-01), Solter et al.
patent: 3881629 (1975-05-01), Shaw et al.

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