Balancing jacket for diving activities equipped with horseshoe-shaped inflatable pocket with ventral extensions and method for its manufacture

Abstract

Method for manufacturing a balancing jacket for diving activities characterized by the following steps: a) manufacturing an inflatable chamber by joining two pieces of suitable fabric substantially having a plan C-shape; manufacturing a back element made of fabric having a substantially U-shape; and applying around said back element the central portion of said inflatable chamber, thus obtaining a tubular back-supporting horseshoe structure provided with two tubular end extensions extending forward substantially as a right angle with respect to said horseshoe structure, thus forming two ventral supporting chambers.

I claim:  
     
         1 . Method for manufacturing a balancing jacket for diving activities characterized by the following steps: a) manufacturing an inflatable chamber ( 1 ) by joining two pieces of suitable fabric substantially having a plan C-shape; manufacturing a back element ( 2 ) made of fabric having a substantially U-shape; and fastening around the U-shaped portion of said back element ( 2 ) the central portion of said inflatable chamber ( 1 ), thus obtaining a tubular back-supporting horseshoe structure ( 101 ) provided with two tubular end extensions ( 3 ,  103 ) extending forward substantially as a right angle with respect to said horseshoe structure ( 101 ), thus forming two ventral supporting chambers.  
     
     
         2 . Method for manufacturing a jacket for diving activities according to  claim 1 , in which the central portion of said chamber ( 1 ) is sewn to the edge of the U-shaped portion of said back element ( 2 ).  
     
     
         3 . Balancing jacket for diving activities in which it comprises an inflatable chamber consisting of a base element substantially having a plan C-shape, the central portion of said base element being shaped as a U by applying a back element made of fabric having a complementary shape with respect to the U shape, thus obtaining a horseshoe structure with two end portions extending forward substantially at a right angle starting from said horseshoe structure.  
     
     
         4 . Balancing jacket for diving activities according to  claim 3 , in which said tubular chamber is made with air-proof fabric, and constitutes the air chamber of the jacket.  
     
     
         5 . Balancing jacket for diving activities according to  claim 3 , in which said tubular chamber contains a second bladder constituting the air chamber of the jacket.  
     
     
         6 . Balancing jacket according to  claim 3 , in which said back element ( 2 ) is made of a net fabric.