Patent ID: 8636164
Filing Date: 2014-01-28
Classification: F16K,Y10T

Abstract:
1. A reverse-acting rupture disc for use with and attached to a storage and/or pressurized system comprising: a dome having a convex side, a concave side, and a thickness; at least one control score formed in said dome between an apex of said dome and an outer circumference of said dome and having a reduced thickness as compared to the thickness of said dome, said at least one control score having an arcuate length measured along the circumference of said dome, a width, a depth and a radial position between the apex of said dome and an outer circumference of said dome; and a rupture score formed in said disc, said disc being configured to rupture at said rupture score after said dome collapses; the radial position of said at least one control score being selectively determined to weaken said dome and to reduce a reversal pressure of said dome so as to control the reversal pressure at which said dome will start to collapse, said at least one control score being radially positioned on said dome between the apex and said rupture score.