US PATENT SUBCLASS 604 / 320
.~.~ Having vacuum shutoff means (e.g., float valve, etc.)

Current as of: June, 1999
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604 /   HD   SURGERY

317  DF  MEANS AND METHODS FOR COLLECTING BODY FLUIDS OR WASTE MATERIAL (E.G., RECEPTACLES, ETC.) {5}
319  DF  .~ Aspiration collection container or trap (e.g., canister, etc.) {2}
320.~.~ Having vacuum shutoff means (e.g., float valve, etc.)

DEFINITION

Classification: 604/320

Having vacuum shutoff means (e.g., float valve, etc.):

(under subclass 319) Subject matter including means to prevent overflow of fluid material into a negative pressure system from the container or cannister comprising a self-acting vacuum port blocking means such as a float valve which when actuated shuts off the vacuum.