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US 11,035,501 B2Granted
Insulated duct with air gap and method of use
AssigneeFlexible Technologies, Inc.
InventorsRonald L. Carlay, II, John Cullen Schlageter, Donald B. Campbell
Life of this patent
Estimating the term…
Abstract
A flexible air duct contains a uniformly-spaced reflective insulation system, with or without bulk insulation, a liner, and an outer jacket that would allow a reduced amount or no amount of bulk insulation to be used to obtain a desired R-value insulation. The flexible air duct can be used to move conditioned air to one or more desired locations.
Claims30
An insulated flexible duct comprising:
- a liner;
- a reflective insulation system surrounding the liner, and
- at least one jacket surrounding the reflective insulation system,
- the reflective insulation system further comprising:
- at least one low emissivity reflective surface;
- and
- at least one spacer system positioned between the liner and the jacket, the spacer system creating a generally uniform air gap between an outer surface of the liner and the inner surface of the jacket to create additional R value for the flexible insulated duct, wherein the spacer system further comprises a star-shaped spiral helix positioned between the outer surface of the liner and the inner surface of the at least one jacket to create the generally uniform air gap between the outer surface of the liner and the inner surface of the at least one jacket.
4 more elements
An insulated flexible duct comprising:
- a liner;
- a reflective insulation system surrounding the liner, and
- at least one jacket surrounding the reflective insulation system,
- the reflective insulation system further comprising:
- at least one low emissivity reflective surface;
- and
- at least one spacer system positioned between the liner and the jacket, the spacer system creating a generally uniform air gap between an outer surface of the liner and the inner surface of the jacket to create additional R value for the flexible insulated duct, wherein the spacer system further comprises a plurality of spaced-apart staves, each spaced-apart stave extending from the outer surface of the liner to create the generally uniform air gap between the outer surface of the liner and the inner surface of the at least one jacket.
4 more elements
An insulated flexible duct comprising:
- a liner;
- a reflective insulation system surrounding the liner, and
- at least one jacket surrounding the reflective insulation system,
- the reflective insulation system further comprising:
- at least one low emissivity reflective surface;
- and
- at least one spacer system positioned between the liner and the jacket, the spacer system creating a generally uniform air gap between an outer surface of the liner and the inner surface of the jacket to create additional R value for the flexible insulated duct, wherein the spacer system further comprises:
- a lattice cord and post blanket surrounding the outer surface of the liner, tensioning of the lattice cord of the lattice cord and post blanket causing posts of the lattice cord and post blanket to orient in a generally perpendicular direction with respect to the outer surface of the liner to create the generally uniform air gap between the outer surface of the liner and the inner surface of the at least one jacket.
5 more elements
An insulated flexible duct comprising:
- a liner;
- a reflective insulation system surrounding the liner, and
- at least one jacket surrounding the reflective insulation system,
- the reflective insulation system further comprising:
- at least one low emissivity reflective surface;
- and
- at least one spacer system positioned between the liner and the jacket, the spacer system creating a generally uniform air gap between an outer surface of the liner and the inner surface of the jacket to create additional R value for the flexible insulated duct, wherein the liner comprises a pair of polymer films, one polymer film forming an inner surface of the liner and the other polymer film forming the outside surface of the liner and, optionally a helical member disposed between the polymer films.
4 more elements
Dependencies are inferred from the claim text.