Nose equalizing device for an underwater mask

Abstract

A nose equalizing device of an underwater mask is provided. The nose equalizing device includes two pouches, each having an opening and a bottom portion corresponding to the opening. Each of the bottom portions is preformed into a first shape having a plurality of continuous folding portions and is in a first position distal from a nose wing of a user. When two fingers of the user exert forces inwardly toward the bottom portions from the openings of the two pouches, respectively, each of the bottom portions is capable of being stretched and deformed into a second shape and being in a second position proximal to the respective nose wing of the user. When the exerted forces are released, each of the bottom portions is capable of automatically or by a reverse force outwards, returning to the first position and restoring to the first shape.

What is claimed is: 
     
         1 . A nose equalizing device of an underwater mask, comprising:
 two pouches, each having an opening and a bottom portion corresponding to the opening;   characterized in that:
 each of the bottom portions is preformed into a first shape having a plurality of continuous folding portions and is in a first position distal from a nose wing of a user; 
 when two fingers of the user exert forces inwardly toward the bottom portions from the openings of the two pouches, respectively, each of the bottom portions is capable of being stretched and deformed into a second shape and being in a second position proximal to the respective nose wing of the user; and 
 when the exerted forces are released, each of the bottom portions is capable of automatically or by a reverse force outwards, returning to the first position and restoring to the first shape. 
   
     
     
         2 . The nose equalizing device of  claim 1 , further comprising a rim and a partition, wherein the partition extends across an upper portion and a lower portion of the rim, thereby forming the two pouches independently of each other on left and right. 
     
     
         3 . The nose equalizing device of  claim 2 , wherein the rim and the partition are integrally formed with a frame portion or a lens portion of the underwater mask. 
     
     
         4 . The nose equalizing device of  claim 2 , wherein the two pouches are integrally formed with a waterproof skirt of the underwater mask. 
     
     
         5 . The nose equalizing device of  claim 2 , wherein the rim, the partition and the two pouches are integrally formed with a waterproof skirt of the underwater mask. 
     
     
         6 . The nose equalizing device of  claim 1 , wherein the two pouches are made of soft material, in which the soft material has a Shore A hardness of 10-90 and is selected from silicone rubber, thermoplastic rubber (TPR), thermoplastic polyurethane (TPU), polyvinylchloride (PVC) or combinations thereof. 
     
     
         7 . The nose equalizing device of  claim 6 , wherein the soft material has a Shore A hardness of 70-90. 
     
     
         8 . The nose equalizing device of  claim 1 , wherein the continuous folding portions are formed with at least two adjacent sidewalls parallel to each other or having an included angle smaller than 90 degrees. 
     
     
         9 . The nose equalizing device of  claim 1 , wherein each of the continuous folding portions has a thickness ranging between 0.3 millimeters (mm) and 4 millimeters (mm). 
     
     
         10 . The nose equalizing device of  claim 1 , wherein each of the continuous folding portions has a height ranging between 2 millimeters (mm) and 18 millimeters (mm). 
     
     
         11 . The nose equalizing device of  claim 1 , wherein the underwater mask is a diving mask having a body and a mouthpiece-type breathing tube separated from the body, and wherein the nose equalizing device is disposed in a nasal chamber defined by at least one of a frame portion, a lens portion and a waterproof skirt of the body. 
     
     
         12 . The nose equalizing device of  claim 1 , wherein the underwater mask is a breathable mask having a breathing tube, a body and a three-way connector, in which the body covers eyes and nose of the user, and the breathing tube and the three-way connector which are disposed on an upper portion and a lower portion of the body, respectively, are in fluid communication with an interior of the body. 
     
     
         13 . The nose equalizing device of  claim 12 , wherein the three-way connector has a nose connecting portion, a drain valve portion and a mouthpiece portion which communicate with one another, and wherein the nose equalizing device is disposed in a nasal chamber defined by the body, and the three-way connector is in fluid communication with the body through the nose connecting portion and the nasal chamber. 
     
     
         14 . The nose equalizing device of  claim 1 , wherein the underwater mask is a full-face breathable mask having a body and a breathing tube communicating with the body, in which the body covers eyes, nose and mouth of the user, and the nose equalizing device is disposed in an orinasal chamber defined by the body.