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An apparatus for shielding roof sewer vents from precipitation is described. The apparatus is known to have a cap of sufficient size to cover the vent opening. Support(s) of adequate length to allow free air flow attached to cap and to either a collar or clips for attaching to vent pipe.
An apparatus for shielding roof sewer vents from precipitation is described. The apparatus is known to have a cap of sufficient size to cover the vent opening. Support(s) of adequate length to allow free air flow attached to cap and to either a collar or clips for attaching to vent pipe.
PRECIPITATION SHIELD
PROTECTEUR CONTRE LES PRECIPITATIONS
VAN DER HORN TIEMEN J (author)
2016-01-11
Patent
Electronic Resource
English
Experimental study on shield tunnel seepage control via microbially induced calcite precipitation
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