F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/4.1
F16K 17/00 (2006.01) F16K 17/16 (2006.01)
Patent
CA 1046891
Abstract of the Disclosure 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 re- verse 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 act- ing rupture disk whereby the prebulged disk entraps any fluid that may leak past the reverse acting rup- ture 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.
257552
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