Valve for dive mask

Abstract

A valve mounted on a dive mask is disclosed. The mask has a closed window frame, a soft skirt extending rearward from the window frame for defining a space between itself and the face of a diver wearing the mask, and one or two windows defined by the window frame. The valve is flexible, tubular and has a first opening at one end in communicating with the space, and a second opening at the other end. The second opening is blocked in an inoperative position and is adapted to open to expel water or air therethrough by increasing pressure in the space or by pressing both sides of the valve.

1 . A valve mountable on a dive mask having a closed window frame, a soft skirt extending rearward from the window frame for defining a space between itself and the face of a diver wearing the dive mask, and window means defined by the window frame wherein the valve is flexible, tubular and has a first opening at one end in communicating with the space, and a second opening at the other end, the second opening being blocked in an inoperative position and being adapted to open to expel water or air therethrough by increasing pressure in the space or by exerting an external pressing force upon the valve. 
   
   
       2 . The valve of  claim 1 , wherein the valve is disposed on the skirt. 
   
   
       3 . The valve of  claim 1 , wherein the valve is disposed on the window means. 
   
   
       4 . The valve of  claim 1 , wherein the valve is disposed on the window frame. 
   
   
       5 . The valve of  claim 1 , wherein the valve is disposed under a bottom of the nose enclosure. 
   
   
       6 . The valve of  claim 1 , wherein the valve is disposed on the skirt above the window means. 
   
   
       7 . The valve of  claim 1 , wherein the valve has a section of oval. 
   
   
       8 . The valve of  claim 1 , wherein the valve and the skirt are formed integrally.