Cluster-type relief device

Dispensing – With discharge assistant – Fluid pressure

Patent

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Details

137 6821, 137 6823, B65B 104

Patent

active

061423467

ABSTRACT:
The present invention is a relief device for a high-pressure gas container, comprising a main body having a generally uniform outer circumference that defines a bore. The bore is in fluid communication with an interior volume of the high-pressure gas container. Within the bore is a rupture disc for relieving to the atmosphere the container's contents when the container reaches a certain pressure. The relief device is coupled to the high-pressure gas container via a threaded connection. In a preferred embodiment, the bore comprises a primary bore coaxial with the main body's main axis, and at least one secondary bore containing the rupture disc, each bore being in fluid communication with one another. The secondary bore and rupture disc are each located within the main body's outer circumference. A cluster nut, threaded at its upstream end to engage corresponding threads in the secondary bore, retains the rupture disc within the secondary bore. The cluster nut has a bore in fluid communication with the secondary bore when the rupture disc is ruptured. Depending upon the gas in the container, the cluster nut may be filled with a fuse metal, designed to melt at a predetermined temperature, that allows container relief in the event of bursting of the rupture disc.

REFERENCES:
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patent: 2383961 (1945-09-01), Freygang
patent: 2662546 (1953-12-01), Nelson
patent: 3404698 (1968-10-01), Rouse
patent: 3618626 (1971-11-01), Russo
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patent: 4907617 (1990-03-01), Whalen
patent: 4944424 (1990-07-01), Wood, Jr.
patent: 5022423 (1991-06-01), Britt
patent: 5103853 (1992-04-01), McGushion et al.
patent: 5160065 (1992-11-01), Libes et al.
patent: 5832947 (1998-11-01), Niemczyk

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