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US 12,535,156 B2Granted
HVACR pipe
AssigneePtubes, Inc.
InventorNicola Pilone
Life of this patent
Estimating the term…
Abstract
The present invention relates to a pipe suitable for conveying fluids in HVACR applications, which pipe comprises an inner tube delimiting an inner space or passageway for a fluid, an insulating cover and an anti-corrosion layer.
Claims23
A pipe for conveying fluids in HVACR applications, said pipe consisting of:
- an inner tube delimiting an inner space or passageway for a fluid;
- an insulating cover;
- and
- an anti-corrosion layer;
- said inner tube being made of a metal, comprising at least one of copper, aluminium, stainless steel, or of a plastic material,
- wherein said anti-corrosion layer is at least in part in contact with an outer surface of the metal or plastic inner tube, and wherein the anti-corrosion layer is extruded directly on the outer surface of the metal or plastic inner tube without the use of glue or other adhesives,
- wherein said anti-corrosion layer is made of or comprises at least one of the following materials:
- polyvinyl chloride (PVC) or polyethylene (PE) or polyamide (PA), polyethylene of raised temperature (PERT), cross-linked polyethylene (PEX) based polymers, or mixture thereof, and
- wherein the anti-corrosion layer has a thickness of between 0.1 mm to 1 mm.
6 more elements
A method for obtaining a pipe for conveying fluids in HVACR applications, comprising:
- providing an inner tube delimiting an inner space or passageway for a fluid, an insulating cover and an anti-corrosion layer, said inner tube consisting of an untreated metal, comprising at least one of copper, aluminium, stainless steel, or of a plastic material;
- extruding an anti-corrosion material on at least one portion of an outer surface of the untreated metal or plastic inner tube without the use of glue or other adhesives to form an anti-corrosion layer thereon;
- and
- at least one of inserting the inner tube coated with the anti-corrosion layer inside an insulating cover, or applying the insulating cover around the inner tube coated with the anti-corrosion layer,
- wherein said anti-corrosion layer comprises at least one of the following materials:
- polyvinyl chloride (PVC) or polyethylene (PE) or polyamide (PA), polyethylene of raised temperature (PERT), cross-linked polyethylene (PEX) based polymers, or mixture thereof.
3 more elements
A pipe suitable for conveying fluids in HVACR applications, said pipe consisting of:
- an inner tube delimiting an inner space or passageway for a fluid;
- an insulating cover;
- an anti-corrosion layer;
- and
- a protective jacket being an outermost layer;
- said inner tube being made of an untreated metal, comprising at least one of copper, aluminium, stainless steel, or of a plastic material,
- wherein said anti-corrosion layer is at least in part in contact with an outer surface of the metal or plastic inner tube, and wherein the anti-corrosion layer is extruded directly on the outer surface of the untreated metal or plastic inner tube without the use of glue or other adhesives, and
- wherein said anti-corrosion layer comprises at least one of the following materials:
- polyvinyl chloride (PVC) or polyethylene (PE) or polyamide (PA), polyethylene of raised temperature (PERT), cross-linked polyethylene (PEX) based polymers, or mixture thereof.
6 more elements
A method for obtaining a pipe for conveying fluids in HVACR applications, comprising:
- providing an inner tube delimiting an inner space or passageway for a fluid, an insulating cover and an anti-corrosion layer, said inner tube consisting of an untreated plastic material;
- extruding an anti-corrosion material directly on at least one portion of an outer surface of the untreated plastic inner tube without the use of glue or other adhesives to form an anti-corrosion layer thereon;
- and
- at least one of inserting the inner tube coated with the anti-corrosion layer inside an insulating cover, or applying the insulating cover around the inner tube coated with the anti-corrosion layer,
- wherein said anti-corrosion layer comprises at least one of the following materials:
- polyvinyl chloride (PVC) or polyethylene (PE) or polyamide (PA), polyethylene of raised temperature (PERT), cross-linked polyethylene (PEX) based polymers, or mixture thereof.
3 more elements
A method for obtaining a pipe for conveying fluids in HVACR applications, consisting of:
- providing an inner tube delimiting an inner space or passageway for a fluid, an insulating cover and an anti-corrosion layer, said inner tube consisting of an untreated metal, comprising at least one of copper, aluminium, stainless steel, or of a plastic material;
- extruding an anti-corrosion material on at least one portion of an outer surface of the untreated metal or plastic inner tube without the use of glue or other adhesives to form an anti-corrosion layer thereon;
- and
- at least one of inserting the inner tube coated with the anti-corrosion layer inside an insulating cover, or applying the insulating cover around the inner tube coated with the anti-corrosion layer,
- wherein said anti-corrosion layer comprises at least one of the following materials:
- polyvinyl chloride (PVC) or polyethylene (PE) or polyamide (PA), polyethylene of raised temperature (PERT), cross-linked polyethylene (PEX) based polymers, or mixture thereof.
3 more elements
Dependencies are inferred from the claim text.