ONE-WAY PERMEABLE MEMBRANE WITH PROTECTIVE BARRIER AND METHOD OF ITS MANUFACTURE
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United States of America
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Feb 22, 2018
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Feb 22, 2018
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The name of the invention: One-way membrane with a barrier protection, which ensures the function of permeability even in the case of contradirectional mechanical pressure, and the method of its manufacture. The invention relates to a single-layer or multilayer membrane (1) with through apertures (2), whose face layer (1) is connected with thin flexible plastic or rubber segments (3) overlapping the apertures (2) and allowing the air or fluid to flow only in the direction from the underside layer (12) of the membrane (1) to the face layer (11) of the membrane (1), as check valves/flaps in the number of up to 30 pieces per 1 cm2. It further relates to the method of manufacturing the membrane (1).
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