Patent ID: 7743784

Claim:
A bursting disc assembly comprising: a bursting disc adapted to rupture at a predetermined pressure differential, the bursting disc having an inlet face and an outlet face, and an outlet side support ring adapted to fit on the outlet face of the bursting disc, having a first face to oppose said outlet face of the bursting disc and a second face on its opposite side from said first face, said outlet side support ring having a fluid passage through it from its radial interior to its radial exterior, wherein said fluid passage is selected from a full thickness slot from said first face to said second face and a groove in one of said first and second faces, wherein when said first face of the outlet side support ring is pressed in its assembled state against said outlet face of the bursting disc, said fluid passage provides a fluid flow path located within a thickness of said outlet side support ring and extending from the outlet side of the bursting disc to the radial exterior of said outlet side support ring.