초록 ▼

Disclosed is a system and method for sealing containment sumps used in connection with underground storage tanks. A sump cover sealing system includes an expansion ring assembly adapted to affix to the interior of the sump, and to fastenably attach with the sump cover to removably seal the sump cove

Disclosed is a system and method for sealing containment sumps used in connection with underground storage tanks. A sump cover sealing system includes an expansion ring assembly adapted to affix to the interior of the sump, and to fastenably attach with the sump cover to removably seal the sump cover to the sump. A contraction band assembly is also provided to affix to the exterior of the sump opposite the expansion ring assembly. Methods of using the system are described. A sump cover with an observation portal is provided.

대표청구항 ▼

1. A method of sealing the interface between: (1) a sump used in connection with an underground storage tank, the sump having an outer surface defining an exterior, an inner surface defining an interior, the outer surface defining an opening into the interior of the sump; and (2) a cover adapted to

1. A method of sealing the interface between: (1) a sump used in connection with an underground storage tank, the sump having an outer surface defining an exterior, an inner surface defining an interior, the outer surface defining an opening into the interior of the sump; and (2) a cover adapted to cover the opening, the method comprising: providing a system comprising:the sump and the cover;an expanding ring assembly;the cover adapted to be attached with the expanding ring assembly by fasteners, the cover further adapted to be urged toward the interface between the opening and the cover and the fasteners are adapted to urge the cover toward the expanding ring; andat least one seal adapted to seal the interface between the opening and the cover when the expanding ring assembly is affixed to the interior of the sump and the cover is attached with the expanding ring assembly and urged toward the interface between the opening and the cover by the fasteners;affixing the expanding ring assembly to the interior of the sump by expanding the expanding ring assembly against the inner surface of the sump;placing the cover proximate the opening and the seal proximate the cover and the opening: andattaching the cover to the expansion ring assembly with the fasteners, thereby urging the cover toward the interface between the opening and the cover and causing the seal to seal the interface between the opening and the cover;whereby the expanding ring assembly is adapted to affix to the interior of the sump by expanding radially outward against the interior of the sump, the expanding ring assembly further adapted to be attached with the cover by the fasteners that urge the cover toward the expanding ring. 2. The method of claim 1, wherein the expanding ring assembly further comprises a rotatable threaded member attached therewith and the step of affixing the expanding ring assembly to the interior of the sump is accomplished by expanding the expansion ring assembly against the inner surface of the sump by rotating the threaded member. 3. The method of claim 1, further comprising the step of affixing a contracting band assembly to the exterior of the sump opposite the expanding ring assembly. 4. The method of claim 3, wherein the step of affixing the contracting band assembly to the exterior of the sump opposite the expanding ring assembly is accomplished by contracting the contracting band assembly against the outer surface of the sump. 5. The method of claim 1, wherein the seal is a water-tight seal. 6. The method of claim 1, wherein the cover includes an observation portal that allows a user outside the sump to see through the observation portal into the interior of the sump when the cover is covering the opening. 7. The method of claim 1, wherein the cover includes an observation portal that allows a user outside the sump to see through the observation portal into the interior of the sump when the cover is covering the opening, further comprising the step of: looking through the observation portal into the interior of the sump when the cover is covering the opening. 8. The method of claim 1, further comprising the step of machining a surface of the sump that will come in contact with the seal. 9. A system for sealing the interface between: (1) a sump used in connection with an underground storage tank, the sump having an outer surface defining an exterior, an inner surface defining an interior, the outer surface defining an opening into the interior of the sump; and (2) a cover adapted to cover the opening, the system comprising: an expanding ring assembly;the cover adapted to be attached with the expanding ring assembly by fasteners, the cover further adapted to be urged toward the interface between the opening and the cover by the fasteners; andat least one seal adapted to seal the interface between the opening and the cover when the expanding ring assembly is affixed to the interior of the sump and the cover is attached with the expanding ring assembly and urged toward the interface between the opening and the cover by the fasteners,whereby the expanding ring assembly is adapted to affix to the interior of the sump by expanding radially outward against the interior of the sump, the expanding ring assembly further adapted to be attached with the cover by the fasteners that urge the cover toward the expanding ring. 10. The system of claim 1, wherein the expanding ring assembly further comprises a rotatable threaded member attached therewith and the expanding ring assembly is adapted to affix to the interior of the sump by expanding against the inner surface of the sump when the threaded member is rotated. 11. The system of claim 1, further comprising a contracting band assembly adapted to affix to the exterior of the sump opposite the expanding ring assembly. 12. The system of claim 1, further comprising a contracting band assembly adapted to affix to the exterior of the sump opposite the expanding ring assembly by contracting against the outer surface of the sump. 13. The system of claim 1, wherein the seal is a water-tight seal. 14. The system of claim 1, wherein the cover includes an observation portal that allows a user outside the sump to see through the observation portal into the interior of the sump when the cover is covering the opening. 15. A sump system for use in connection with an underground storage tank, the sump system comprising: a sump having an outer surface defining an exterior, an inner surface defining an interior, the outer surface defining an opening into the interior of the sump;a cover covering the opening such that there is an interface between the opening and the cover;an expanding ring assembly affixed to the interior of the sump by compressive force directed by the expanding ring assembly radially outward against the interior of the sump, the expansion ring assembly attached with the cover by fasteners urging the cover toward interface; andat least one seal sealing the interface between the opening and the cover. 16. The system of claim 15, wherein the expanding ring assembly further comprises a rotatable threaded member attached therewith and the expanding ring assembly is expanded against the inner surface of the sump when the threaded member is rotated. 17. The system of claim 15, further comprising a contracting band assembly affixed to the exterior of the sump opposite the expanding ring assembly. 18. The system of claim 15, further comprising a contracting band assembly contracted against the outer surface of the sump opposite the expanding ring assembly. 19. The system of claim 15, wherein the seal is a water-tight seal. 20. The system of claim 15, wherein the cover includes an observation portal that allows a user outside the sump to see through the observation portal into the interior of the sump when the cover is covering the opening.