Water resistant slide fastener

Abstract

A water resistant slide fastener includes two supporting members made of a water resistant material. Each supporting member includes a first surface, a second surface opposite to the first surface, and a longitudinal edge. A plurality of coupling elements are formed on each supporting member. Each coupling element includes a first portion on the first surface of an associated supporting member and a second portion on the second surface of the associated supporting member. The first portion and the second portion of each coupling element extend beyond the longitudinal edge of the associated supporting member and have a gap therebetween. The longitudinal edge of each supporting member extends into the gaps of the coupling elements. The longitudinal edges of the supporting members overlap each other when the coupling elements of the supporting members are engaged with each other.

1 . A water resistant slide fastener, comprising: 
 two supporting members made of a water resistant material, each said supporting member including a first surface, a second surface opposite to the first surface, and a longitudinal edge; and    a plurality of coupling elements formed on the first surface and the second surface of each said supporting member, each said coupling element including a first portion on the first surface of an associated one of the supporting members and a second portion on the second surface of the associated supporting member, the first portion and the second portion of each said coupling element extending beyond the longitudinal edge of the associated supporting member and having a gap therebetween, the longitudinal edge of each said supporting member extending into the gaps of the coupling elements;    wherein the longitudinal edges of the supporting members overlap each other when the coupling elements of the supporting members are engaged with each other.    
   
   
       2 . The water resistant slide fastener as claimed in  claim 1 , wherein the supporting members are made of a material selected from a group consisting of rubber, plastics, and resins.  
   
   
       3 . The water resistant slide fastener as claimed in  claim 1 , wherein each said supporting member includes a plurality of through-holes through which the coupling elements extend during formation of the coupling elements.  
   
   
       4 . The water resistant slide fastener as claimed in  claim 3 , wherein each said through-hole is one of rectangular, circular, and square.  
   
   
       5 . The water resistant slide fastener as claimed in  claim 1 , wherein each said supporting member includes an enlarged filament.  
   
   
       6 . A water resistant slide fastener, comprising: 
 two supporting members each including a first surface, a second surface opposite to the first surface, and a longitudinal edge, a water resistant layer being provided on at least one of the first surface and the second surface of each said supporting member; and    a plurality of coupling elements formed on the first surface and the second surface of each said supporting member, each said coupling element including a first portion on the first surface of an associated one of the supporting members and a second portion on the second surface of the associated supporting member, the first portion and the second portion of each said coupling element extending beyond the longitudinal edge of the associated supporting member and having a gap therebetween, the longitudinal edge of each said supporting member extending into the gaps of the coupling elements; wherein the longitudinal edges of the supporting members overlap each other when the coupling elements of the supporting members are engaged with each other.    
   
   
       7 . The water resistant slide fastener as claimed in  claim 6 , wherein the water resistant layer is made of a material selected from a group consisting of water resistant resins and polyurethane.  
   
   
       8 . The water resistant slide fastener as claimed in  claim 6 , wherein the water resistant layer extends to the longitudinal layer of an associated one of the supporting members.  
   
   
       9 . The water resistant slide fastener as claimed in  claim 6 , wherein each said supporting member includes a plurality of through-holes through which the coupling elements extend during formation of the coupling elements.  
   
   
       10 . The water resistant slide fastener as claimed in  claim 9 , wherein each said through-hole is one of rectangular, circular, and square.  
   
   
       11 . The water resistant slide fastener as claimed in  claim 6 , wherein each said supporting member includes an enlarged section.  
   
   
       12 . The water resistant slide fastener as claimed in  claim 6 , wherein the supporting members are made of a non-water-resistant material.  
   
   
       13 . The water resistant slide fastener as claimed in  claim 6 , wherein the supporting members are made of a water-resistant material.