US PATENT SUBCLASS 222 / 541.3
.~ Closure or closure portion broken by pressure of container content

Current as of: June, 1999
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222 /   HD   DISPENSING

541.1  DF  WITH FRANGIBLE CLOSURE FOR OUTLET {4}
541.3.~ Closure or closure portion broken by pressure of container content {1}
541.4  DF  .~.~> About line or point of weakness

DEFINITION

Classification: 222/541.3

Closure or closure portion broken by pressure of container content:

(under subclass 541.1) Subject matter wherein the closure or a part thereof is broken, torn, ruptured, or separated by the pressure of a dispensing material within the container.

SEE OR SEARCH THIS CLASS, SUBCLASS:

491+, for an outlet element that is not frangible but is

movable by the pressure of the content in the dispenser.