F - Mech Eng,Light,Heat,Weapons – 24 – F
Patent
F - Mech Eng,Light,Heat,Weapons
24
F
F24F 13/28 (2006.01)
Patent
CA 2429449
In an average dwelling, many insects gain entrance to living spaces through the heat and air return vents. This invention creates an impenetrable barrier across the vents, blocking insects 1mm and larger from passing through the vent and into your home. The barrier is made from screening material (either nylon fabric, metal or fibreglass) normally found in window screens. They are held tightly in place by an elastic sewn (or glued) into place around the perimeter of the screen (sized to fit standard heat and air return vents).
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