Pipe joints or couplings – Having plural independent paths – Allowing relative motion of pipes
Patent
1988-01-19
1990-01-02
Arola, Dave W.
Pipe joints or couplings
Having plural independent paths
Allowing relative motion of pipes
285150, 285158, 285 47, F16L 4500
Patent
active
048908649
ABSTRACT:
The specification discloses a low-cost, simple, and efficient duct system for conveying heated and/or cooled air throughout a building. The system includes duct assemblies and transition components for interconnecting the duct assemblies. Each duct assembly includes an insulated duct having a rigid sleeve within at least one end. Each sleeve includes an abutment ring and orifices in the ring for permitting air to flow into the insulated layer to balloon the layer and improve its insulative effect. Each transition component includes a rigid external skeleton and a plurality of duct board panels fitted therein. After the sleeves are fitted within openings in the duct board panels, the tabs are deformed to retain the abutment rings in engagement with the panels.
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Atco Brochure "Introducing the Package Deal, The HVA C-System from Atco".
Anderson Charles B.
Kenrick C. Robert
Arola Dave W.
C-System Incorporated
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