Apparatus and method for repairing an existing spill containment manhole

摘要

An apparatus for repairing an existing spill containment manhole operably associated with an underground fuel storage tank. The apparatus includes a containment vessel for containing fuel spilled during filling of the underground fuel storage tank. A major portion of the containment vessel is adapted to be inserted into an existing spill containment manhole. Preferably, the containment vessel includes an upper annular flange that extends over and surrounds a portion of an existing cover rim of an existing spill containment manhole thereby isolating an upper portion of the containment vessel from an upper portion on the existing spill containment manhole when the containment vessel is installed. Optionally, a replacement cover is provided to replace an existing cover of the existing spill containment manhole. The replacement cover may include at least one sealing member that engages the inner surface of the at least one wall of the containment vessel when installed.

主权项

1. A kit for repairing an existing spill containment manhole operably associated with an underground fuel storage tank, said kit comprising:
(a) a containment vessel for containing fuel spilled during filling of the underground fuel storage tank, a major portion of said containment vessel being adapted to be inserted into an existing spill containment manhole, said containment vessel surrounding an existing pipe section operably associated with the underground fuel storage tank when said containment vessel is installed, said containment vessel including an annular wall, a bottom having an opening for receiving the existing pipe section and a flange, said flange being disposed at the uppermost portion of said containment vessel, said annular wall having an inner surface and an outer surface, said annular wall being continuous and uninterrupted such that said annular wall is free of joints, said annular wall extending from said bottom to said flange; and, (b) a replacement cover to replace an existing cover of the existing spill containment manhole, said replacement cover having a first annular portion and a second annular portion, said second annular portion being adapted to extend into said containment vessel when said replacement cover is installed, said first annular portion being disposed above said second annular portion, said replacement cover having at least one sealing member that engages said inner surface of said annular wall of said containment vessel when installed, said at least one sealing member extending outwardly from said second annular portion and being disposed between said second annular portion and said inner surface of said annular wall of said containment vessel.