F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
F24F 13/02 (2006.01) F16L 3/26 (2006.01) F16L 37/08 (2006.01)
Patent
CA 2261538
A unit of ventilation tubing for coupling to other such units of ventilation tubing in series to form a ventilation duct in which leakage and consequent pressure loss are minimized. The unit of ventilation tubing includes a flexible air impermeable ventilation tube having first and second end portions at first and second ends thereof, respectively. The unit further includes a first fastening member affixed to the tube at the first end portion and a second fastening member affixed to the tube at the second end portion spaced from the second end. The first and second fastening members are fastenable together whereby a ventilation duct may be formed by placing a plurality of the units of ventilation tubing end to end in series with the first fastening member of a selected unit fastened to the second fastening member of a next adjacent unit with a portion of the tube of the next adjacent unit being disposed in a portion of the tube of the selected unit in an overlapping relationship thereby minimizing air leakage in the ventilation duct.
Gowling Lafleur Henderson Llp
Ivarsson Bernt I.
LandOfFree
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