Abstract: A device (10) is disclosed. It has a gas impervious barrier (12) configured to be located between an opening of a container (16) and a door (18) arranged to close the opening. There is a passageway (14) through the barrier, the passageway (14) providing a pathway between the interior and exterior of the container (16) for a gas.

Abstract: A method for fumigating an enclosed space (12) comprises the steps of containing a gaseous fumigant at a discrete location within the enclosed space (12) so as to displace a volume of gas from the enclosed space, and releasing the contained fumigant from the discrete location and into the enclosed space. The method can employ an apparatus (10) that comprises a flexible enclosure (12) that is inflatable and deflatable with a gas between an expanded configuration and a collapsed configuration. The enclosure (12) can be positioned within the enclosed space (12) prior to fumigant introduction. The apparatus (10) can also comprise an inlet (16) arranged at the enclosure to receive gaseous fumigant therethrough for inflation of the enclosure (12), as well as an outlet (20) and a valve (24) arranged at the enclosure (12).

Abstract: A device (10) is disclosed. It has a gas impervious barrier (12) configured to be located between an opening of a container (16) and a door (18) arranged to close the opening. There is a passageway (14) through the barrier, the passageway (14) providing a pathway between the interior and exterior of the container (16) for a gas.

Abstract: A portal apparatus in the form of an arch-shaped pipe fitting (10) for use with a fumigation chamber that in part incorporates a flexible canopy. The pipe fitting (10) can be seated on the ground (12) so as to be positioned between the canopy and the ground (12). A sealing surface (22) on the pipe fitting (10) is contactable with the flexible canopy so as to provide a gas-tight seal. An assembly for directing the flow of gas in general, the assembly being operable in various configurations, and comprising first and second gas inlets and outlets respectively. An assembly for operatively coupling gas extraction, treatment and recirculation apparatus, and comprising first and second gas inlets and outlets respectively that can be selectively coupled in first and second configurations.

Abstract: A portal apparatus in the form of an arch-shaped pipe fitting (10) for use with a fumigation chamber that in part incorporates a flexible canopy. The pipe fitting (10) can be seated on the ground (12) so as to be positioned between the canopy and the ground (12). A sealing surface (22) on the pipe fitting (10) is contactable with the flexible canopy so as to provide a gas-tight seal. An assembly for directing the flow of gas in general, the assembly being operable in various configurations, and comprising first and second gas inlets and outlets respectively. An assembly for operatively coupling gas extraction, treatment and recirculation apparatus, and comprising first and second gas inlets and outlets respectively that can be selectively coupled in first and second configurations.