초록 ▼

A boot assembly that reliably seals the secondary containment area utilizing a split boot device that can be installed without disconnecting the primary piping is disclosed. The seal includes first and second containment housings, each supporting a pair of partial ring shaped seals. The containment

A boot assembly that reliably seals the secondary containment area utilizing a split boot device that can be installed without disconnecting the primary piping is disclosed. The seal includes first and second containment housings, each supporting a pair of partial ring shaped seals. The containment housings can be positioned about the primary and secondary pipes from opposing sides thereof so that disconnection of the primary pipe is not required to secure the seal in place. A clamp secures the first containment housing relative to the second containment housing in a secured position in which a first pair of partial ring seals associated with the first containment housing and a second pair of partial ring shaped seals associated with the second containment housing cooperate to form a pair of continuous ring shaped sealing surfaces including a first continuous ring shaped sealing surface including one of the first pair of partial ring shaped seals and one of the second pair of partial ring shaped seals, and a second continuous ring shaped sealing surface including a second one of the first pair of partial ring shaped seals and a second one of the second pair of partial ring shaped seals.

대표청구항 ▼

1. A seal for sealing an interstitial space formed between a primary pipe and a secondary pipe positioned about the primary pipe, the seal comprising: a first containment housing supporting a first seal, said first seal comprising a first pair of partial ring shaped seals, said first pair of partial

1. A seal for sealing an interstitial space formed between a primary pipe and a secondary pipe positioned about the primary pipe, the seal comprising: a first containment housing supporting a first seal, said first seal comprising a first pair of partial ring shaped seals, said first pair of partial ring shaped seals each forming a partial ring;a second containment housing supporting a second seal, said second seal comprising a second pair of partial ring shaped seals; anda clamp sized and shaped to secure said first containment housing relative to said second containment housing in a secured position in which said first pair of partial ring shaped seals of said first seal and said second pair of partial ring shaped seals of said second seal cooperate to form a pair of continuous ring shaped sealing surfaces comprising a first continuous ring shaped sealing surface comprising a first one of said first pair of partial ring shaped seals and a first one of said second pair of partial ring shaped seals, and a second continuous ring shaped sealing surface comprising a second one of said first pair of partial ring shaped seals and a second one of said second pair of partial ring shaped seals, in said secured position said first containment housing and said second containment housing defining a containment housing longitudinal axis, wherein said first pair of partial ring shaped seals span a first gasket and a second gasket, said first pair of partial ring shaped seals joined by said first gasket and said second gasket, said second pair of partial ring shaped seals span a third gasket and a fourth gasket, said second pair of partial ring shaped seals joined by said third gasket and said fourth gasket, said clamp sealingly engaging said first gasket to said third gasket and said second gasket to said fourth gasket to form said pair of continuous ring shaped sealing surfaces. 2. The seal of claim 1, wherein said first gasket comprises a first gasket seal surface and a first gasket opposite surface opposite the first gasket seal surface, said first gasket seal surface and said first gasket opposite surface forming an angle oriented so that a thickness of said first gasket increases radially inwardly toward said containment housing longitudinal axis. 3. The seal of claim 2, wherein said third gasket comprises a third gasket seal surface and a third gasket opposite surface opposite the third gasket seal surface, said third gasket seal surface and said third gasket opposite surface forming an angle oriented so that a thickness of said third gasket increases radially inwardly toward said containment housing longitudinal axis. 4. The seal of claim 2, wherein said first containment housing includes a cavity sized to receive said first seal, said cavity including a beveled surface to accommodate said angle. 5. The seal of claim 1, wherein each of said first pair of partial ring shaped seals comprises an O-ring and each of said second pair of partial ring shaped seals comprises an O-ring. 6. The seal of claim 1, wherein each of said first pair of partial ring shaped seals comprises a dual lobed sealing ring presenting a pair of sealing surfaces and each of said second pair of partial ring shaped seals comprises a dual lobed sealing ring presenting a pair of sealing surfaces. 7. The seal of claim 1, wherein said first containment housing includes a first pair of T-shaped protrusions extending from an exterior wall of said first containment housing and said second containment housing includes a second pair of T-shaped protrusions extending from an exterior wall of said second containment housing, said seal further comprising a first pair of O-rings, each of said first pair of O-rings positioned about one of said first pair of T-shaped protrusions and one of said second pair of T-shaped protrusions to hingedly connect said first containment housing to said second containment housing. 8. The seal of claim 1, wherein said first containment housing extends no more than 180.degree. about said containment housing longitudinal axis and said second containment housing extends no more than 180.degree. about said containment housing longitudinal axis. 9. A seal for sealing an interstitial space formed between a primary pipe and a secondary pipe positioned about the primary pipe, the seal comprising: a first containment housing supporting a first seal, said first seal comprising a first pair of partial ring shaped seals, said first pair of partial ring shaped seals each forming a partial ring;a second containment housing supporting a second seal, said second seal comprising a second pair of partial ring shaped seals; anda clamp sized and shaped to secure said first containment housing relative to said second containment housing in a secured position in which said first pair of partial ring shaped seals of said first seal and said second pair of partial ring shaped seals of said second seal cooperate to form a pair of continuous ring shaped sealing surfaces comprising a first continuous ring shaped sealing surface comprising a first one of said first pair of partial ring shaped seals and a first one of said second pair of partial ring shaped seals, and a second continuous ring shaped sealing surface comprising a second one of said first pair of partial ring shaped seals and a second one of said second pair of partial ring shaped seals, in said secured position said first containment housing and said second containment housing defining a containment housing longitudinal axis, wherein said first continuous ring shaped sealing surface defines a first radius measured from said containment housing longitudinal axis and said second continuous ring shaped sealing surface defines a second radius measured from said containment housing longitudinal axis, said first radius smaller than said second radius, whereby said first continuous ring shaped sealing surface and said second continuous ring shaped sealing surface can simultaneously sealingly engage two differently sized pipes. 10. The seal of claim 9, wherein said first containment housing includes a locator extending from an interior wall of said first containment housing toward said containment housing longitudinal axis, said locator extending further inwardly toward said containment housing longitudinal axis than said second continuous ring shaped sealing surface. 11. A seal for sealing an interstitial space formed between a primary pipe and a secondary pipe positioned about the primary pipe, the seal comprising: a first containment housing supporting a first seal, said first seal comprising a first pair of partial ring shaped seals, said first pair of partial ring shaped seals each forming a partial ring;a second containment housing supporting a second seal, said second seal comprising a second pair of partial ring shaped seals; anda clamp sized and shaped to secure said first containment housing relative to said second containment housing in a secured position in which said first pair of partial ring shaped seals of said first seal and said second pair of partial ring shaped seals of said second seal cooperate to form a pair of continuous ring shaped sealing surfaces comprising a first continuous ring shaped sealing surface comprising a first one of said first pair of partial ring shaped seals and a first one of said second pair of partial ring shaped seals, and a second continuous ring shaped sealing surface comprising a second one of said first pair of partial ring shaped seals and a second one of said second pair of partial ring shaped seals, in said secured position said first containment housing and said second containment housing defining a containment housing longitudinal axis, wherein each of said first pair of partial ring shaped seals has a first thickness spaced from a second thickness, said second thickness greater than said first thickness. 12. The seal of claim 11, wherein each of said second pair of partial ring shaped seals has a third thickness spaced from a fourth thickness, said fourth thickness greater than said third thickness. 13. The seal of claim 12, wherein said fourth thickness is positioned 180° about said containment housing longitudinal axis from said second thickness when said first containment housing and said second containment housing are in said secured position. 14. The seal of claim 12, wherein each of said first pair of partial ring shaped seals defines a first partial ring shaped seal inner diameter and a first partial ring shaped seal outer diameter, said first partial ring shaped seal inner diameter eccentric to said first partial ring shaped seal outer diameter, and each of said second pair of partial ring shaped seals defines a second partial ring shaped seal inner diameter and a second partial ring shaped seal outer diameter, said second partial ring shaped seal inner diameter eccentric to said second partial ring shaped seal outer diameter. 15. The seal of claim 11, wherein each of said first pair of partial ring shaped seals defines an inner diameter and an outer diameter, said inner diameter eccentric to said outer diameter. 16. A seal for sealing an interstitial space formed between a primary pipe and a secondary pipe positioned about the primary pipe, the seal comprising: a first containment housing supporting a first seal, said first seal comprising a first pair of partial ring shaped seals, said first pair of partial ring shaped seals each forming a partial ring;a second containment housing supporting a second seal, said second seal comprising a second pair of partial ring shaped seals; anda clamp sized and shaped to secure said first containment housing relative to said second containment housing in a secured position in which said first pair of partial ring shaped seals of said first seal and said second pair of partial ring shaped seals of said second seal cooperate to form a pair of continuous ring shaped sealing surfaces comprising a first continuous ring shaped sealing surface comprising a first one of said first pair of partial ring shaped seals and a first one of said second pair of partial ring shaped seals, and a second continuous ring shaped sealing surface comprising a second one of said first pair of partial ring shaped seals and a second one of said second pair of partial ring shaped seals, in said secured position said first containment housing and said second containment housing defining a containment housing longitudinal axis, wherein said first containment housing includes a first containment housing external radial protrusion and said second containment housing includes a second containment housing external radial protrusion, said first containment housing external radial protrusion aligning with said second containment housing external radial protrusion when said first containment housing and said second containment housing are in said secured position, said first containment housing external radial protrusion and said second containment housing external radial protrusion both having opposing ramp surfaces, so that a thickness of said first containment housing external radial protrusion and said second containment housing external radial protrusion increases radially inwardly toward said containment housing longitudinal axis, said clamp comprising a pair of interior ramp surfaces complementary to said opposing ramp surfaces of said first containment housing external radial protrusion and said second containment housing external radial protrusion, wherein said interior ramp surfaces of said clamp act against said opposing ramp surfaces of said first containment housing external radial protrusion and said second containment housing external radial protrusion to both axially and radially align said first containment housing with said second containment housing as said clamp secures said first containment housing and said second containment housing in said secured position. 17. A seal for sealing an interstitial space formed between a primary pipe and a secondary pipe positioned about the primary pipe, the seal comprising: a first containment housing supporting a first seal, said first seal comprising a first pair of partial ring shaped seals, said first pair of partial ring shaped seals each forming a partial ring;a second containment housing supporting a second seal, said second seal comprising a second pair of partial ring shaped seals; anda clamp sized and shaped to secure said first containment housing relative to said second containment housing in a secured position in which said first pair of partial ring shaped seals of said first seal and said second pair of partial ring shaped seals of said second seal cooperate to form a pair of continuous ring shaped sealing surfaces comprising a first continuous ring shaped sealing surface comprising a first one of said first pair of partial ring shaped seals and a first one of said second pair of partial ring shaped seals, and a second continuous ring shaped sealing surface comprising a second one of said first pair of partial ring shaped seals and a second one of said second pair of partial ring shaped seals, in said secured position said first containment housing and said second containment housing defining a containment housing longitudinal axis, wherein said first containment housing further comprises a fitting extending from an exterior surface of said first containment housing and connected in fluid communication by a channel extending through a wall of said first containment housing to an interior surface of said first containment housing, said channel terminating at a location intermediate said first continuous ring shaped sealing surface and said second continuous ring shaped sealing surface. 18. A seal for sealing an interstitial space formed between a primary pipe and a secondary pipe positioned about the primary pipe, the seal comprising: a first containment housing supporting a first seal, said first seal comprising a first pair of partial ring shaped seals, said first pair of partial ring shaped seals each forming a partial ring;a second containment housing supporting a second seal, said second seal comprising a second pair of partial ring shaped seals; anda clamp sized and shaped to secure said first containment housing relative to said second containment housing in a secured position in which said first pair of partial ring shaped seals of said first seal and said second pair of partial ring shaped seals of said second seal cooperate to form a pair of continuous ring shaped sealing surfaces comprising a first continuous ring shaped sealing surface comprising a first one of said first pair of partial ring shaped seals and a first one of said second pair of partial ring shaped seals, and a second continuous ring shaped sealing surface comprising a second one of said first pair of partial ring shaped seals and a second one of said second pair of partial ring shaped seals, in said secured position said first containment housing and said second containment housing defining a containment housing longitudinal axis, wherein said first containment housing includes a first pair of T-shaped protrusions extending from an exterior wall of said first containment housing and said second containment housing includes a second pair of T-shaped protrusions extending from an exterior wall of said second containment housing, said seal further comprising a first pair of O-rings, each of said first pair of O-rings positioned about one of said first pair of T-shaped protrusions and one of said second pair of T-shaped protrusions to hingedly connect said first containment housing to said second containment housing, wherein said first containment housing includes a third pair of T-shaped protrusions extending from said exterior wall of said first containment housing and said second containment housing includes a fourth pair of T-shaped protrusions extending from said exterior wall of said second containment housing, said seal further comprising a second pair of O-rings, each of said second pair of O-rings positioned about one of said third pair of T-shaped protrusions and one of said fourth pair of T-shaped protrusions to selectively secure said first containment housing to said second containment housing. 19. A seal for sealing an interstitial space formed between a primary pipe and a secondary pipe positioned about the primary pipe, the seal comprising: a first containment housing supporting a first seal, said first seal comprising a first pair of partial ring shaped seals, said first pair of partial ring shaped seals each forming a partial ring;a second containment housing supporting a second seal, said second seal comprising a second pair of partial ring shaped seals; anda clamp sized and shaped to secure said first containment housing relative to said second containment housing in a secured position in which said first pair of partial ring shaped seals of said first seal and said second pair of partial ring shaped seals of said second seal cooperate to form a pair of continuous ring shaped sealing surfaces comprising a first continuous ring shaped sealing surface comprising a first one of said first pair of partial ring shaped seals and a first one of said second pair of partial ring shaped seals, and a second continuous ring shaped sealing surface comprising a second one of said first pair of partial ring shaped seals and a second one of said second pair of partial ring shaped seals, in said secured position said first containment housing and said second containment housing defining a containment housing longitudinal axis, in combination with a fueling station comprising the primary pipe, the secondary pipe, an underground storage tank, a fuel dispenser, an underground storage tank sump and a fuel dispenser sump, the primary pipe fluidly connecting the underground storage tank with the fuel dispenser and traversing the underground storage tank sump and the fuel dispenser sump, the secondary pipe providing secondary containment of the primary pipe and extending between the underground storage tank sump and the fuel dispenser sump, the clamp securing said first containment housing relative to said second containment housing in the secured position, so that the first continuous ring shaped sealing surface seals against the primary pipe and the second continuous ring shaped sealing surface seals against the secondary pipe.