Manhole odor eliminator
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United States of America Patent
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May 5, 2015
Grant Date -
Sep 13, 2012
app pub date -
Mar 8, 2012
filing date -
Mar 8, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A sewer gas odor absorption apparatus for a manhole having a perforate manhole cover disposed in the manhole which includes an imperforate housing having a seal dimensioned and configured for sealing engagement with the manhole, the housing has a first extremity and a second extremity and a passageway in fluid communication with ambient air above the manhole cover at the first extremity and in fluid communication with sewer gases at the second extremity thereof. A sub-assembly including a porous absorption media and a variable volume device disposed in mutual fluid communication in a subassembly having first and second axial extremities, the first and second extremities of the subassembly being disposed in fluid communication respectively with the first and second extremities of the imperforate housing.
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