| 摘要 |
<p>An improved reverse buckling rupture disk apparatus which includes a reverse buckling rupture disk, an annular rupture disk support member and knife structure for severing the rupture disk upon the reversal thereof. The knife structure are comprised of at least three blade legs having sharpened cutting edges formed thereon facing the rupture disk attached together at the internal ends thereof and attached to or supported by the annular support member at the external ends thereof. Each of the blade legs has at least a portion of the cutting edge thereof inclined towards the rupture disk from the internal end to the external end thereof whereby upon reversal of the rupture disk, the rupture disk is progressively severed by the cutting edges of the blade legs from points near the periphery of the reversing portion of the rupture disk to the center of the rupture disk.</p> |
