US PATENT SUBCLASS 137 / 68.21
.~.~.~ Means for holding entire disc after rupture

Current as of: June, 1999
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137 /   HD   FLUID HANDLING

67  DF  DESTRUCTIBLE OR DEFORMABLE ELEMENT CONTROLLED {2}
68.11  DF  .~ Destructible element {9}
68.19  DF  .~.~ Rupture disc {6}
68.21.~.~.~ Means for holding entire disc after rupture

DEFINITION

Classification: 137/68.21

Means for holding entire disc after rupture:

(under subclass 68.19) Subject matter that has a specific means for preventing the rupture disc from tearing away (e.g., hinge-reinforcing member).