Water-tight slide fastener
AssigneeYoshida Kogyo K.K.
InventorYoshiyuki Horita
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Abstract
A water-tight slide fastener is disclosed, which comprises a pair of support tapes each coated on one surface with a water-resistant material and a row of coupling elements mounted on each of the tapes along its longitudinal edge. The spaces or gaps defined in the row of elements being completely filled by a filling core when the latter swells in contact with a liquid to prevent entry of the liquid into a garment to which the fastener is applied.
Claims5
A water-tight slide fastener which comprises a pair of oppositely disposed support tapes, a row of fastener coupling elements, each having a coupling head, and an upper leg portion, a lower leg portion and a heel portion and secured by sewing threads to and along an inner longitudinal edge of each of the respective support tapes, and a filling core extending through spaces defined in said row of coupling elements and initially filling said spaces except for the region of said coupling head, said core having means rendering it capable of swelling upon contact with a liquid and completely filling up said spaces against entry of the liquid into the interior of an article to which the fastener is applied, and said support tape being coated with a water-resistant coating material on one of its surfaces and on its longitudinal marginal edge.
Dependencies are inferred from the claim text.