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US 4,399,830 AGranted
Safety pressure relief device assembly
AssigneeIMI Marston Limited
InventorGeorge W. Brodie
Life of this patent
Estimating the term…
Abstract
A safety pressure relief device including a pair of annular disc holders adapted to clamp between them a reverse buckling disc, one of the annular discs being located within the other disc and an arrester bar being disposed within the confines of the other disc member.
Claims9
A safety pressure relief device comprising:
- a pressure relief disc having a central domed portion and an annular peripheral region;
- first and second annular disc holders adapted to locate and hold the peripheral region of the relief disc, the first of the annular disc holders being located within the second annular disc holder;
- an arrester bar located within the second annular disc holder and adapted to be located, in use, downstream of the annular disc;
- the relief disc being a reverse buckling disc having its concave side towards the arrester bar and being so held between the annular disc holders as to be completely released from the annular disc holders after reversing under the action of excess pressure on the convex side.
1 more element
Dependencies are inferred from the claim text.