Patent ID: 6884325

Claim:
A sealable lid assembly for a manhole of a vessel, comprising: a flange surrounding the manhole and extending outwardly from the vessel to a distal end; at least one wall extending from the flange proximate the distal end to define a channel; a shaft extending outwardly from the vessel proximate the manhole; a lid pivotally and telescopically mounted to the shaft capable of releasably and sealably engaging the flange; a protrusion extending outwardly from the lid and insertable into the channel; at least one wheel rotatably mounted to the lid; at least one elongated track extending outwardly from the vessel in a position to engage the at least one wheel and raise the lid vertically above the flange as the lid pivots; and at least one clamp assembly releasably contracting the lid into sealable engagement with the flange.