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US 10,352,482 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
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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.
Claims10
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 an expandable lattice blanket 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.
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 spacer system further comprises an expandable lattice blanket 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,
- wherein the expandable lattice blanket is made of a sheet of foam with openings therein wherein expansion of the sheet of foam creates lattice openings or strips of foam connected together at spaced apart locations to create the lattice openings.
6 more elements
Dependencies are inferred from the claim text.