Pressurized container

Abstract

A receiving portion ( 11 ) having a pressure receiving-surface ( 11 F) is provided in the through hole ( 10 ) of a container body ( 1 ), wherein the pressure-receiving surface has a tapered pressure-receiving surface ( 11 A) and an outer receiving-pressure-regulating R(rounded) surface ( 11 B) continuous to the forward end of the tapered pressure-receiving surface ( 11 A). A supply/discharge tube ( 13 ) being inserted into the through hole is provided with a flange portion ( 14 ) having a pressurizing surface ( 14 F) which is provided with a tapered pressurizing surface ( 14 A) coming into face-contact with the tapered pressure-receiving surface.

1 . (cancelled)  
     
     
         2 . (cancelled)  
     
     
         3 . (Amended) a pressurized container formed by providing a pressure-receiving member with a through hole, fitting a pressurizing member in the through hole, engaging a pressurizing surface of a flange portion of the pressurizing member with a pressure-receiving surface of a pressure-receiving portion of the through hole, characterized in that: 
 the pressure-receiving surface is provided with an outwardly and upwardly inclining tapered pressure-receiving surface, and an outer receiving-pressure-regulating rounded surface continuing to a front end of the tapered pressure-receiving surface,    the pressurizing surface being provided with a tapered pressurizing surface which is surface-engaged with the tapered pressure-receiving surface, and an inner pressure-regulating rounded surface continuing to a rear end of the tapered pressurizing surface.    
     
     
         4 . (Amended) A pressurized container according to  claim 3 , wherein the radius of the outer receiving-pressure-regulating rounded surface is 1 mm or more.  
     
     
         5 . (Amended) A pressurized container according to  claim 3 , wherein the radius of the inner pressure-regulating rounded surface is 1 mm or more.  
     
     
         6 . A pressurized container according to  claim 3 , wherein the radius of the outer receiving-pressure-regulating rounded surface and that of the inner pressure-regulating rounded surface are equal to each other.  
     
     
         7 . A pressurized container according to  claim 3 , wherein the radius of the outer receiving-pressure-regulating rounded surface and that of the inner pressure-regulating rounded surface are different from each other.  
     
     
         8 . (Amended) A pressurized container according to  claim 3 , wherein a rounded surface or a tapered surface continues to a rear end of the tapered pressure-receiving surface.  
     
     
         9 . (Amended) A pressurized container according to  claim 3 , wherein a rounded surface or a tapered surface continues to a front end of the tapered pressurizing surface.  
     
     
         10 . (Amended) A pressurized container according to  claim 3 , wherein an angle of inclination of the tapered pressure-receiving surface is selected from levels in the range of 30 degrees to 60 degrees.  
     
     
         11 . (Amended) A pressurized container according to  claim 3 , wherein an angle of inclination of the tapered pressurizing surface is selected from levels in the range of 30 degrees to 60 degrees.  
     
     
         12 . (Amended) A pressurized container according to  claim 3 , wherein the pressure-receiving member is a bottom portion of the container body of the accumulator, the pressurizing member being a flange portion of a supply/discharge tube.  
     
     
         13 . A pressurized container according to  claim 12 , wherein an O-ring is provided between a through hole on the lower side of the pressure-receiving surface and supply/discharge tube.