초록 ▼

A portable environmental control system for evacuating particulate laden, toxic, and explosive gasses from an interior space includes a flexible partition for erection at the interior space, and a first section of flexible duct connected to the partition and to an electric motor driven blower unit h

A portable environmental control system for evacuating particulate laden, toxic, and explosive gasses from an interior space includes a flexible partition for erection at the interior space, and a first section of flexible duct connected to the partition and to an electric motor driven blower unit having an explosion proof ducted fan. A second section of duct is connected to the blower unit and may be connected to a filter unit mountable in a window of an interior room or to a collapsible plenum having plural filter units mounted therein for treating and returning air evacuated from the space back into the space. The blower unit may be placed within a space having a high concentration of explosive gasses for evacuating the gasses by way of an elongated duct section connected to an elevating mechanism to discharge gasses out of doors above ground level.

대표청구항 ▼

1. A portable environmental control system for evacuating toxic, particulate laden or explosive gasses from a space, said system comprising:a first flexible duct section having one end disposed to evacuate said gasses from said space; a motor driven blower unit including a housing, an inlet port in

1. A portable environmental control system for evacuating toxic, particulate laden or explosive gasses from a space, said system comprising:a first flexible duct section having one end disposed to evacuate said gasses from said space; a motor driven blower unit including a housing, an inlet port in said housing, a discharge port in said housing, and a flow duct extending between said inlet and discharge ports, said inlet port being connected to an opposite end of said first duct section, said blower unit including a propulsion fan disposed to evacuate gasses from said space through said first duct section and through said flow duct in said housing; a second flexible duct section connected at one end to said discharge port; and at least one filter unit connected to said second duct section at an end opposite the end connected to said discharge port for receiving gasses evacuated from said space and for treating said gasses to reduce hazards associated therewith.