F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 17/40 (2006.01) F16K 17/16 (2006.01)
Patent
CA 2329603
In an improved support ring adapted to support a rupturable rupture disc member in a rupture disc assembly, the support ring includes an upper surface, a lower surface, a central aperture defined by an inner peripheral edge and at least one tear-initiating projection, and having a cutting means extending inwardly from the inner peripheral edge and below the upper surface and adapted to cut the rupture disc member. The cutting means includes a plurality of curved cutting portions, each of the plurality of curved cutting portions including an inner arc section extending closer to the inner peripheral edge than other portions of the curved cutting portion There is also provided an improved support holder adapted for use with a rupture disc assembly including a support ring having an angled cutting portion wherein the support ring is seated on the support holder such that the angled cutting portion extends away from the support holder, the support holder includes an upper and a lower surface, a central aperture and an inner peripheral wall bounding the central aperture, and where one of the upper and lower surfaces includes a projection extending beyond one of the upper or lower surfaces, the projection bounding at least a portion of the central aperture and configured to support the angled cutting portion of the support ring seated on the one of the upper and lower surfaces. The improved holder and support ring provide improved tear initiation for a rupture disc.
Goddard John D.
Muddiman Scott G.
Mcfadden Fincham
Process Equipment Inc.
Zook Canada Inc.
LandOfFree
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