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US 3,941,556 AGranted
Gas control system for a sanitary landfill
OwnerFrank Pallagiinventor
Life of this patent
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OwnerFrank Pallagiinventor
Estimating the term…
A system for controlling gas migration in a landfill including a gas permeable medium disposed in the trenches constructed for utility pipes to provide horizontal conduits for the gases, and a gas permeable medium disposed around the manholes and/or catch basins communicating with the utility pipes to provide vertical conduits for the gases, the vertical gas conduits communicating with the horizontal gas conduits so as to prevent the gases from entering the utility pipes. The gases are vented to the atmosphere through the manhole covers and/or the catch basin grates by way of gas permeable wall segments disposed between the manhole/catch basin sidewalls and the pavement, or are vented through vertical pipes that extend through the pavement and communicate with the horizontal gas conduits. Alternatively, the gases may be conducted from the horizontal gas conduits to the cellars of adjacent buildings and used as a fuel for heating purposes.
A system for controlling gas migration in a landfill into which extends at least one substantially vertical conduit having impermeable walls connected to a substantially horizontal conduit of a utility system, the vertical conduit communicating with the atmosphere through an aperture in a pavemennt overlying the landfill, comprising means forming a space surrounding the vertical conduit and extending from the pavement into the landfill, a gas permeable medium in the vertical conduit surrounding space, and gas permeable conduit forming means disposed between the vertical conduit and the pavement communicating the vertical conduit with the aperture in the pavement, whereby gases from the landfill flow through the gas permeable medium and the gas permeable conduit forming means into the atmosphere.
A system for controlling gas migration in a landfill over which extends at least one substantially horizontal conduit of a utility system, comprising means forming a space extending generally parallel with the horizontal conduit, a gas permeable medium in the space parallel with the horizontal conduit, and conduit means for conducting gases away from the space parallel with the horizontal conduit.
Dependencies are inferred from the claim text.