Shoe with drainable ports

Abstract

A shoe includes, in combination a sole having a main wall and a side wall upwardly extending from the periphery of the main wall, an upper secured to the sole side wall and arranged to form a foot receiving cavity with the sole, and a plurality of drain ports on opposite sides of the sole and communicating the cavity to exterior space outside the shoe to drain liquid within the cavity to the exterior space. The drain ports extend through the sole side wall and are at least partially located below a top surface of the sole main wall. The sole has drain channels laterally extending between pairs of the drain ports which direct liquid toward the drain ports. The shoe also includes an insole located within the cavity and supported by the sole and a liner located within the cavity and between the insole and the sole. The liner is secured to at least one of the upper and the sole and is provided with openings at the drain channels so that liquid in the cavity can pass through the openings to the drain channel. The insole is provided with passages so that liquid in the cavity can pass through the passages to the liner. The drain ports are each provided with an eyelet secured to the sole and screen to limit passage of solids though the drain ports. Preferably, there are four pairs of the drain ports located on opposite sides of the sole and there are four drain channels respectively extending between the four pairs of the drain ports.

What is claimed is:  
     
         1 . A shoe comprising, in combination: 
 a sole;    an upper secured to the sole and arranged to form a foot receiving cavity with the sole; and    at least one drain port in the sole and communicating the cavity to exterior space outside the shoe to drain liquid within the cavity to the exterior space.    
     
     
         2 . The shoe according to  claim 1 , wherein sole has a main wall and a side wall upwardly extending from the periphery of the main wall and the drain port extends through the side wall.  
     
     
         3 . The shoe according to  claim 2 , wherein the drain port is at least partially located below a top surface of the sole main wall.  
     
     
         4 . The shoe according to  claim 3 , wherein the sole has a drain channel formed in the top surface to direct liquid toward the drain port.  
     
     
         5 . The shoe according to  claim 4 , further comprising an insole located within the cavity and supported by the sole and a liner located within the cavity and between the insole and the sole, and wherein the liner is secured to at least one of the upper and the sole and is provided with at least one opening at the drain channel so that liquid in the cavity can pass through the opening to the drain channel.  
     
     
         6 . The shoe according to  claim 5 , wherein the insole is provided with at least one passage so that liquid in the cavity can pass through the passage to the liner.  
     
     
         7 . The shoe according to  claim 1 , wherein the drain port is provided with an eyelet secured to the sole.  
     
     
         8 . The shoe according to  claim 7 , wherein the eyelet is provided with a screen to limit passage of solids though the drain port.  
     
     
         9 . The shoe according to  claim 1 , wherein the drain port is provided with a screen to limit passage of solids though the drain port.  
     
     
         10 . The shoe according to  claim 1 , wherein a plurality of the drain ports are provided and located on opposite sides of the sole.  
     
     
         11 . The shoe according to  claim 10 , wherein sole has a main wall and a side wall upwardly extending from the periphery of the main wall and the drain ports extend through the side wall, the sole has a drain channel formed in the top surface and laterally extending between a pair of the drain ports to direct liquid toward the drain ports.  
     
     
         12 . A shoe comprising, in combination: 
 a sole having a main wall and a side wall upwardly extending from the periphery of the main wall;    an upper secured to the sole side wall and arranged to form a foot receiving cavity with the sole;    at least one drain port in the sole and communicating the cavity to exterior space outside the shoe to drain liquid within the cavity to the exterior space;    wherein the drain port is at least partially located below a top surface of the sole main wall and the sole has a drain channel which directs liquid toward the drain port;    an insole located within the cavity and supported by the sole;    a liner located within the cavity and between the insole and the sole; and    wherein the liner is secured to at least one of the upper and the sole and is provided with at least one opening at the drain channel so that liquid in the cavity can pass through the opening to the drain channel.    
     
     
         13 . The shoe according to  claim 12 , the drain port extends through the sole side wall.  
     
     
         14 . The shoe according to  claim 12 , wherein the insole is provided with at least one passage so that liquid in the cavity can pass through the passage to the liner.  
     
     
         15 . The shoe according to  claim 12 , wherein the drain port is provided with an eyelet secured to the sole.  
     
     
         16 . The shoe according to  claim 15 , wherein the eyelet is provided with a screen to limit passage of solids though the drain port.  
     
     
         17 . The shoe according to  claim 12 , wherein the drain port is provided with a screen to limit passage of solids though the drain port.  
     
     
         18 . The shoe according to  claim 12 , wherein a plurality of the drain ports are provided and located on opposite sides of the sole.  
     
     
         19 . The shoe according to  claim 18 , wherein the drain channel laterally extends between a pair of the drain ports to direct liquid toward the drain ports.  
     
     
         20 . A shoe comprising, in combination: 
 a sole having a main wall and a side wall upwardly extending from the periphery of the main wall;    an upper secured to the sole side wall and arranged to form a foot receiving cavity with the sole;    a plurality of drain ports on opposite sides of the sole and communicating the cavity to exterior space outside the shoe to drain liquid within the cavity to the exterior space; and    wherein the drain ports are at least partially located below a top surface of the sole main wall and the sole has a drain channel laterally extending between a pair of the drain ports which directs liquid toward the drain ports.    
     
     
         21 . The shoe according to  claim 20 , the drain ports extend through the sole side wall.  
     
     
         22 . The shoe according to  claim 20 , further comprising an insole located within the cavity and supported by the sole and a liner located within the cavity and between the insole and the sole, and wherein the liner is secured to at least one of the upper and the sole and is provided with at least one opening at the drain channel so that liquid in the cavity can pass through the opening to the drain channel.  
     
     
         23 . The shoe according to  claim 22 , wherein the insole is provided with at least one passage so that liquid in the cavity can pass through the passage to the liner.  
     
     
         24 . The shoe according to  claim 20 , wherein the drain ports are each provided with an eyelet secured to the sole.  
     
     
         25 . The shoe according to  claim 24 , wherein the eyelet is provided with a screen to limit passage of solids though the drain ports.  
     
     
         26 . The shoe according to  claim 20 , wherein the drain ports are each provided with a screen to limit passage of solids though the drain ports.  
     
     
         27 . The shoe according to  claim 20 , wherein there are four pairs of the drain ports located on opposite sides of the sole and there are four of the drain channels respectively extending between the four pairs of the drain ports.