A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
VENTED PRECIPITATION GUARDING MANHOLE COVER ASSEMBLY
A vented precipitation guarding manhole cover assembly, comprising: a manhole cover having a top exterior surface and a bottom interior surface; a vent opening extending through the manhole cover between the top and bottom surfaces; a valve assembly in fluid communication with the vent opening and extending from the bottom interior surface, the valve assembly configured to extend from the bottom interior surface at least partially inside the manhole, the valve assembly operable between an open position, to enable gas to exit from the manhole, and a closed position, to prevent the flow of fluid from the top exterior surface into the manhole.
VENTED PRECIPITATION GUARDING MANHOLE COVER ASSEMBLY
A vented precipitation guarding manhole cover assembly, comprising: a manhole cover having a top exterior surface and a bottom interior surface; a vent opening extending through the manhole cover between the top and bottom surfaces; a valve assembly in fluid communication with the vent opening and extending from the bottom interior surface, the valve assembly configured to extend from the bottom interior surface at least partially inside the manhole, the valve assembly operable between an open position, to enable gas to exit from the manhole, and a closed position, to prevent the flow of fluid from the top exterior surface into the manhole.
VENTED PRECIPITATION GUARDING MANHOLE COVER ASSEMBLY
BELÜFTETE NIEDERSCHLAGSSCHUTZ-SCHACHTABDECKUNGSANORDNUNG
ENSEMBLE COUVERCLE DE TROU D'HOMME DE PROTECTION CONTRE LES PRÉCIPITATIONS À ÉVENT
PUTNAM DAVID ALAN (author)
2024-11-20
Patent
Electronic Resource
English