Top stop for water-tight slide fastener

A water-tight slide fastener comprising:

• (a) a stringer tape of a water-tight material having a pair of opposed inner longitudinal edges;
• (b) a pair of rows of fastener elements mounted on said stringer tapes along said opposed inner longitudinal edges, respectively,
• (c) a slider slidably mounted on said rows of coupling elements for taking them into and out of meshing engagement with each other to close and open the slide fastener, said slider including upper and lower wings joined at one end by a diamond so as to define therebetween a Y-shaped guide channel for the passage of said rows of fastener elements, at least one of said wings having a pair of opposite side flanges defining a part of said Y-shaped guide channel, said Y-shaped guide channel having a flared mouth;
• and
• (d) a top stop disposed at a top end of said pair of rows of fastener elements for restricting the movement of said slider in a direction to close the slide fastener, said top stop including
• (i) first seal elastic means snugly receivable in said Y-shaped guide channel for sealingly surrounding said diamond of said slider when said slider is moved toward said top stop to fully close the slide, fastener, and
• (ii) second elastic seal means integral with said first elastic seal means and snugly receivable in said flared mouth of said Y-shaped guide channel for sealingly closing said flared mouth when the slide fastener is fully closed said second elastic seal means having opposite end portions spaced from and extending along opposite end portions of said first elastic seal means, said opposite end portions of said second elastic seal means having a pair of inwardly directed projections, respectively, engageable with outer surfaces of said side flanges of said slider when the slide fastener is fully closed.