US PATENT SUBCLASS 137 / 68.24
.~.~.~.~ Two-way rupture disc

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}
68.23  DF  .~.~.~ Direct pressure causes disc to burst {2}
68.24.~.~.~.~ Two-way rupture disc

DEFINITION

Classification: 137/68.24

Two-way rupture disc:

(under subclass 68.23) Subject matter that is designed to break either in the direction of or opposite the direction of the fluid flow when an excessive pressure differential exists.