US PATENT SUBCLASS 604 / 90
.~.~.~.~ Closure moved, expanded, or flexed by force transmitted by liquid

Current as of: June, 1999
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604 /   HD   SURGERY

19  DF  MEANS FOR INTRODUCING OR REMOVING MATERIAL FROM BODY FOR THERAPEUTIC PURPOSES (E.G., MEDICATING, IRRIGATING, ASPIRATING, ETC.) {7}
48  DF  .~ Treating material introduced into or removed from body orifice, or inserted or removed subcutaneously other than by diffusing through skin {9}
82  DF  .~.~ Means for intermixing liquid with solid or different liquid {4}
89  DF  .~.~.~ Closure or barrier between compartments moved to permit mixing {2}
90.~.~.~.~ Closure moved, expanded, or flexed by force transmitted by liquid

DEFINITION

Classification: 604/90

Closure moved, expanded, or flexed by force transmitted by liquid:

(under subclass 89) Subject matter wherein the sealing means is displaced, expanded, or flexed to permit mixing by pressure exerted by a liquid which itself has been subjected to a force to permit mixing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

150, for devices expelling material therefrom by means of a liquid.