US PATENT SUBCLASS 220 / FOR 100
.~ Removable closure retained by resilient distortion of preformed configuration, e.g., detent (220/306)

Current as of: June, 1999
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220 /   HD   RECEPTACLES

DIG 34  DD  Anti-tamper pharmaceutical capsules (e.g. tamper indicating or resistant) {3}
FOR 100.~ Removable closure retained by resilient distortion of preformed configuration, e.g., detent (220/306) {2}
FOR 101  DF  .~.~> Interlocking means internal of passage mouth, e.g., stopper-type closure (220/307)
FOR 102  DF  .~.~> With gasket or packing (220/308)

DEFINITION

Classification: 220/FOR.100

Foreign art collection wherein the closure or the passage mouth is provided with a preformed configuration designed to induce a distortion of the cover or passage mouth during their mating cooperation, the return of the distorted portions to normal position serves to cause an interlock between the closure and passage mouth, preventing their casual separation.