Apparatus for protecting a gas pressure system from over pressur

Details Apparatus for protecting a gas pressure system from over pressur Apparatus for protecting a gas pressure system from over pressur

1975-10-20

1978-04-25

Schwadron, Martin P.

Fluid handling

Destructible or deformable element controlled

Destructible element

137312, 137613, 220 89A, F16K 1740

Patent

active

040857646

ABSTRACT:
Apparatus for protecting a fluid pressure system from over-pressure, comprising a dome-shaped, reverse acting rupture disk adapted to be installed in an outlet of the fluid pressure system with its convex face resisting the system pressure, the reverse acting rupture disk being adapted to abruptly snap over center when subjected to a pre-determined pressure level, and a knife blade assembly disposed adjacent the back or concave face of the reverse acting rupture disk for cutting it as it snaps over center. The apparatus further includes a dome-shaped, prebulged rupture disk separated from the reverse acting rupture disk by a spacer ring, the prebulged disk having its concave face toward the reverse acting rupture disk whereby the prebulged disk entraps any fluid that may leak past the reverse acting rupture disk and will reliably burst when its concave face is subjected to the system fluid pressure upon the rupture of the reverse acting rupture disk.

REFERENCES:
patent: 2661121 (1953-12-01), Coffman et al.
patent: 2856096 (1958-10-01), Philip
patent: 2895492 (1959-07-01), Bell
patent: 3448750 (1969-06-01), Parks
patent: 3685686 (1972-08-01), Raidl
patent: 3834581 (1974-09-01), Solter et al.
patent: 3906977 (1975-09-01), Summers et al.

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