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US 4,296,884 AGranted
Containment reservoir and method
AssigneeTrue Temper Corporation
InventorRobert W. Luebke
Life of this patent
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AssigneeTrue Temper Corporation
InventorRobert W. Luebke
Estimating the term…
A containment reservoir for a liquid, such as petroleum oil, comprising, a walled ground containment space or pit, opening upwardly, with the space containing a liquid impervious flexible liner generally following the contour of the space, and with the liner comprising a layer of pervious fabric material having on at least one of its sides a layer of liquid impervious material, such as rubber, the liner being operable to prevent escape of liquid through the liner from the containment space; means are provided coacting with the liner covered containment space for removing liquid from the reservoir. A covering layer of pervious fabric material filters anything, including liquid, passing into the reservoir. A method of forming the reservoir from predetermined width strips of liner stock, and a method of retaining and salvaging oil spilled along a railroad track environment is also disclosed.
A containment reservoir for a liquid, such as petroleum based oil, comprising, a walled containment space opening upwardly, said space containing a flexible liquid impervious liner generally following the contour thereof, in at least one direction thereof, said liner comprising a layer of liquid pervious fabric material having on at least one of its sides an attached layer of liquid impervious material, such as rubber, which is resistant to oil degradation, said liner being operable to prevent escape of liquid from said reservoir through said liner from said containment space, a relatively coarse particle bed located on said liner and filling said containment space, a layer of liquid pervious flexible fabric filter material supported on said bed and covering the open top of said bed, and means coacting with said liner covered containment space for removing liquid therefrom.
A containment reservoir for immiscible liquid such as petroleum based oil, comprising, a walled containment space opening upwardly, said space containing a flexible liquid impervious liner generally following the contour thereof in at least one direction thereof, said liner comprising a layer of non-woven liquid pervious fabric material having on at least one of its sides a bonded layer of liquid impervious material, such as rubber of a type resistant to degradation by petroleum based oils, said impervious layer facing outwardly of said space, said liner being operable to prevent escape of liquid from said reservoir through said liner from said containment space, said liner being comprised of a plurality of strip form sections, each of which is of predetermined width, said strip from sections being secured together at the junctures thereof, and forming said liner, a relatively coarse particle bed supported on said pervious layer of said liner and filling said containment space, a layer of a liquid pervious flexible non-woven fabric filter material supported on said bed and covering the open top of said bed, said filter layer being operative to filter impurities of predetermined size from said bed, and drain means coacting with said containment space for removing liquid through said liner from said reservoir.
Dependencies are inferred from the claim text.