Ventilation – Having outlet airway – With air pump
Patent
1989-06-05
1992-01-28
Joyce, Harold
Ventilation
Having outlet airway
With air pump
521695, 454345, 454909, F24F 1100
Patent
active
050835009
ABSTRACT:
The system for removing the soil gas from the ground surrounding the building structure, includes a clean-out pipe, an air duct system, and a fan. The clean-out pipes are installed inside the building structure, accessible from the ground level and near junctions between the interconnecting pipes and the drain tile. The air duct system is securable to a clean-out pipe, and the fan is installed inside the air duct system. The air duct system is disconnected from the clean-out pipe during the cleaning of the drain tile system. The pressurized fluid projecting through the tip of the rocket nozzle, removes any obstructions in the drain tile, and the pressurized fluid projecting rearward from the nozzle, propels the rocket nozzle through the drain tile system. The air duct system is then connected to the clean-out pipe. The venting of air away from the drain tile system creates a negative pressure, which draws the soil gas into the porous drain tile. By continuously operating the fan, venting the air in the drain tile the soil gas is effectively prevented from entering the building structure.
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Dykman K. Rand
Francis Thomas
Black Gerald R.
Joyce Harold
Superior Environmental Services, Inc.
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