US 11,713,902 B2
Radial compression packaging of a flexible duct
Stanley Rusek, Jr., The Woodlands, TX (US); and Darrin L. Affeldt, Katy, TX (US)
Assigned to Quietflex Manufacturing Co., LP, Houston, TX (US)
Filed by Quietflex Manufacturing Co., LP, Houston, TX (US)
Filed on Mar. 3, 2022, as Appl. No. 17/653,363.
Application 17/653,363 is a continuation of application No. 16/891,123, filed on Jun. 3, 2020, granted, now 11,300,315.
Claims priority of provisional application 62/858,954, filed on Jun. 7, 2019.
Prior Publication US 2022/0252296 A1, Aug. 11, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. F24F 13/02 (2006.01); F16L 7/00 (2006.01)
CPC F24F 13/0218 (2013.01) [F16L 7/00 (2013.01); F24F 13/0245 (2013.01); F24F 13/0281 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A system for packing and assembling a flexible duct, comprising:
a sleeve comprising:
a tubular vapor barrier;
an insulating layer within the vapor barrier and comprising a central cavity; and
wherein the sleeve is radially compressed and rolled along an axial direction; and
an air core sized to fit within the central cavity of the insulating layer, the air core comprising a sheet configured to block fluid flow therethrough and a structural support coiled within the sheet and wherein the air core is flattenable and not within the rolled sleeve.