Liners and methods of making liners
AssigneeGoad Company
InventorsCurtis Goad, Tyler Goad, Phillip Pyatt
Life of this patent
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Abstract
The present disclosure relates to liners and methods of making liners. The liners may be suitable for use with tanks and other storage/containment vessels, such as process tanks, immersion tanks, indoor or outdoor containment pits, gravity feed conduits (e.g., concrete trench, canal, or drain, etc.) for transferring or conveying liquid, grain storage tanks or containers (e.g., dielectric or electrically non-conductive liners for grain storage, etc.), etc.
Claims21
A method of making a liner from a rectangular sheet of material, the method comprising:
- removing four rectangular corner pieces from the rectangular sheet of material such that a remainder of the rectangular sheet of material includes a rectangular bottom portion and four rectangular sidewall portions each extending outwardly relative to a corresponding one of the four sides of the rectangular bottom portion, whereby the rectangular bottom portion and four rectangular sidewall portions cooperatively define a generally cross shaped configuration;
- repositioning the four rectangular sidewall portions relative to the rectangular bottom portion;
- and
- radio frequency (RF) compression welding along corners formed or defined between each pair of adjacent rectangular sidewall portions to thereby create a liner defined by the rectangular bottom portion and the four rectangular sidewall portions that cooperatively define an internal volume usable for storage of materials;
- wherein the rectangular sheet of material comprises one or more rectangular sheets of polyvinylidene fluoride (PVDF), ethylene interpolymer alloy (EIA), and/or a geomembrane;
- and/or
- wherein repositioning the four rectangular sidewall portions relative to the rectangular bottom portion comprises repositioning the four rectangular sidewall portions to form or define the corners between each pair of adjacent rectangular sidewall portions without overlapping edges of the rectangular sidewall portions internally along the corresponding rectangular sidewall portions of the pairs of adjacent rectangular sidewall portions before RF compression welding along the corners.
A method of making a liner from a sheet of material, the method comprising:
- removing one or more corner pieces from the sheet of material such that a remainder of the sheet of material includes a bottom portion and sidewall portions extending outwardly relative to the bottom portion;
- repositioning the sidewall portions relative to the bottom portion;
- and
- radio frequency (RF) compression welding along one or more corners formed or defined between each pair of adjacent sidewall portions to thereby create a liner defined by the bottom portion and the sidewall portions that cooperatively define an internal volume usable for storage of materials;
- wherein the sheet of material comprises one or more sheets of polyvinylidene fluoride (PVDF), ethylene interpolymer alloy (EIA), and/or a geomembrane;
- and/or
- wherein repositioning the sidewall portions relative to the bottom portion comprises repositioning the sidewall portions to form or define the one or more corners between each pair of adjacent sidewall portions without overlapping edges of the sidewall portions internally along the corresponding sidewall portions of the pairs of adjacent sidewall portions before RF compression welding along the one or more or more corners.
Dependencies are inferred from the claim text.