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AssigneeColines S.P.A.
InventorEraldo Peccetti
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A tubular support for winding a material in sheet form includes a corrugated tubular element, wherein the corrugated tubular element is positioned inside at least one outer coating element in sheet form. The internal corrugated tubular element has outer longitudinal portions and inner longitudinal portions connected by annular radial walls which form an inner corrugated wall. The internal corrugated tubular element and the outer coating element in sheet form are connected at the outer longitudinal portions. In a different embodiment, a corrugated tubular element is positioned between two coating elements in sheet form, in outer and internal positions respectively.
A tubular support (11) for the winding of material in sheets comprising a corrugated tubular element (12) characterized in that said corrugated tubular element (12) is positioned inside at least one outer coating element in sheets (13).
The tubular support (11) according to one or more of the previous claims, characterized in that two annular radial walls (16), when connected by an outer longitudinal portion (14), define inner annular interspaces (17), whereas two annular radial walls (16), when connected by an inner longitudinal portion (15), define outer annular interspaces (18).
The tubular support (11, 111) according to one or more of the previous claims, characterized in that said inner corrugated tubular element (12, 112) is positioned between two coating elements in sheets (113, 113′), inner and outer respectively.
The tubular support (11, 111) according to one or more of the previous claims, characterized in that said inner corrugated tubular element (12, 112) substantially consists of a mixture, in a widely variable percentage, of fibre glass and polypropylene and/or polyethylene and/or polystyrene and/or polyamide and/or polyester and/or similar, wherein said polypropylene can be a block copolymer, a random copolymer, a homopolymer or a terpolymer, and it can be a virgin or regenerated material, according to the desired characteristics to be conferred to said support (11, 111), and wherein said polyethylene can be low-density, medium-density, high-density polyethylene, linear or metallocene, and can also be virgin or regenerated.
The tubular support (11, 111) according to one or more of the previous claims, characterized in that said coating element in sheets (13, 113) substantially consists of polypropylene and/or polyethylene and/or polystyrene and/or polyamide and/or polyester and/or similar, wherein said polypropylene can be a block copolymer, a random copolymer, a homopolymer or a terpolymer, and it can be a virgin or regenerated material, according to the desired characteristics to be conferred to said support (11, 111) and wherein said polyethylene can be low-density, medium-density, high-density polyethylene, linear or metallocene, and can also be virgin or regenerated.
Dependencies are inferred from the claim text.