Patent ID: 6343408
Filing Date: 2002-02-05
Classification: A44B,Y10T

Abstract:
A fluidtight zip fastener, having a slider and a pair of fluidtight zip fastener carrying tapes carrying zip fastener members and whose edge portions engage on one another, each carrying tape comprising a base tape with a soft covering layer of synthetic rubber, which covers at least one surface of the base tape, a pair of continuous coupling member rows being sewn to the zip fastener carrying tapes in a spatially offset position transversely to the longitudinal edges of the zip fastener carrying tapes such that press-contact edge portions of the soft covering layers are in contact with one another along a longitudinal plane, which intersects the zip fastener at a central axis thereof and which is at right angles to the principal plane of the zip fastener. the press-contact edge portions of the zip fastener carrying tapes projecting over the longitudinal plane when the coupling member rows are disengaged, wherein the press-contact edge portions of the zip fastener carrying tapes, when the coupling member rows are disengaged, wherein the press-contact edge portions of the zip fastener carrying tapes, when the coupling member rows are disengaged, project over the longitudinal plane such that said edge portions, when the coupling member rows are in engagement, are bent away from that side carrying the coupling member rows and diverge extending roughly at right angles to the principal plane of the zip fastener, the soft covering layers of the press-contact edge portions of the two zip fastener carrying tapes, which project over the base tape, engage on one another under pressure action and thus ensure a fluidtightness condition.