Drive-over berms for protective containment liners
AssigneeNew Pig Corporation
InventorsBeth P. Powell, Matthew J. Huff, R. Douglas Evans
Life of this patent
Estimating the term…
Abstract
Drive-over berm systems that protect raised sections of protective containment liners from truck and heavy equipment damage are disclosed. A ramped outer berm abuts an elevated portion of the liner, which may be raised to a desired height by an insert positioned under the liner. A ramped inner berm may about the elevated portion of the liner, and a connector plate may be used to secure the outer and inner ramped berms together. The height of the raised portion of the liner is selected to provide the desired sump capacity of the containment area. The inner berm and/or outer berm may be provided in sections that can be connected end-to-end.
Claims23
A drive-over containment liner system comprising:
- an inner berm comprising a base, an outwardly facing sidewall, and an inwardly facing ramp surface;
- an outer berm comprising a base, an inwardly facing sidewall, and an outwardly facing ramp surface, wherein at least one of the inwardly facing ramp surface of the inner berm and the outwardly facing ramp surface of the outer berm is perforated;
- a liner sheet extending under the base of the inner berm and having a folded portion between the outwardly facing sidewall of the inner berm and the inwardly facing sidewall of the outer berm defining an elevated liner fold comprising an upwardly extending portion of the liner and a downwardly extending portion of the liner forming a liquid containment barrier;
- and
- a riser insert located between the upwardly and downwardly extending portions of the liner having an upper support edge structured and arranged to hold the liner fold at an elevated position.
An outer berm section for use with a liquid impermeable liner of a drive-over containment liner system, the outer berm section comprising:
- a base;
- a sidewall extending upwardly from the base;
- a top surface extending substantially perpendicularly from a top edge of the sidewall;
- a perforated ramp surface extending downwardly at an angle from the top surface toward the base;
- a channel formed in the top surface running along a length of the outer berm section structured and arranged to receive a downwardly extending side edge of a connector plate;
- an end having an end groove therein;
- and
- another end having an end tongue therein, wherein the end groove is structured and arranged to engage an end tongue in a second outer berm section and the end tongue is structured and arranged to engage an end groove in a third outer berm section to thereby connect the outer berm sections together end-to-end.
An inner berm section for use with a liquid impermeable liner of a drive-over containment liner system, the inner berm section comprising:
- a base;
- a sidewall extending upwardly from the base;
- a top surface extending substantially perpendicularly from a top edge of the sidewall;
- a perforated ramp surface extending downwardly at an angle from the top surface toward the base;
- a channel formed in the top surface running along a length of the inner berm section structured and arranged to receive a downwardly extending side edge of a connector plate;
- an end having an end groove therein;
- and
- another end having an end tongue therein, wherein the end groove is structured and arranged to engage an end tongue in a second inner berm section and the end tongue is structured and arranged to engage an end groove in a third inner berm section to thereby connect the inner berm sections together end-to-end.
Dependencies are inferred from the claim text.