US PATENT SUBCLASS 137 / 68.22
.~.~.~ Disc burst after destruction of additional element

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}
68.22.~.~.~ Disc burst after destruction of additional element

DEFINITION

Classification: 137/68.22

Disc burst after destruction of additional element:

(under subclass 68.19) Subject matter that includes a second frangible element in a system which destructs before the rupture disc.

(1) Note. This subject matter would include a system with two or more rupture discs in a flow passage.