Patent ID: 6779567
Filing Date: 2004-08-24
Classification: B01L

Abstract:
A transfer port apparatus comprisinga canister portion formed to include a canister passageway and adapted to be coupled to a canister to place the canister passageway in communication with a canister chamber formed in the canister, an isolator portion formed to include an isolator passageway and adapted to be coupled to an isolator to place the isolator passageway in communication with an isolation chamber formed in the isolator, a latch arranged to couple the canister portion to the isolator portion to place the canister passageway in communication with the isolator passageway to establish a transfer conduit through the canister and isolator portions, a removable conduit closure arranged to lie in and occlude the transfer conduit, the canister portion including a seal support and an expansible seal member mounted on the seal support and arranged to move relative to the seal support from a contracted position to an expanded position to establish a substantially airtight sealing engagement with the removable conduit closure, the expansible seal member including an inner ring configured to mate with and seal against the removable conduit closure upon insertion of the movable conduit closure into the canister passageway formed in the canister portion, and means for passing a pressurized fluid through the isolator portion and the seal support to a fluid-receiving space provided between the seal support and the inner ring to move the inner ring away from the seal support to the expanded position against the removable conduit closure, the passing means including a single air conduit formed in the seal support and the isolator portion.