F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
F24F 13/02 (2006.01) E04F 17/04 (2006.01) F16L 9/00 (2006.01) F16L 57/04 (2006.01)
Patent
CA 2654435
The invention relates to a metal sheet (15) ventilation/smoke exhaust duct section (10) for incorporation into a metal sheet ventilation/smoke exhaust duct, said metal sheets (15) being covered on the outside by a heat insulating material (20) and said duct section (10) including elongated stiffening bar members (30) located on the outside of the duct and attached to said metal sheets (15), the invention being characterised in said bar members (30) being located at a distance from said metal sheets (15), said bar members (30) being attached to said metal sheets (15) at discrete locations along the length of the bar members (30).
L'invention concerne un tronçon (10) de conduit de ventilation / désenfumage en tôle (15) destiné à être incorporé dans un conduit de ventilation / désenfumage en tôle, lesdites tôles (15) étant recouvertes extérieurement d'un matériau (20) d'isolation thermique et ledit tronçon (10) de conduit comprenant des éléments (30) de barres raidisseuses allongées, situés à l'extérieur du conduit et fixés auxdites tôles (15), l'invention étant caractérisée en ce que lesdits éléments (30) de barres sont situés à une certaine distance desdites tôles (15), lesdits éléments (30) de barres étant fixés auxdites tôles (15) en des emplacements discrets sur la longueur des éléments (30) de barres.
Christensen Kenn
Hansen Lars Elmekilde
Pedersen Kurt Munk
Fetherstonhaugh & Co.
Rockwool International A/s
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