Patent ID: 7209360

Claim:
A leak-fight system for boxes containing electrical and electronic components comprising in cooperative combination: a) a box body ( 1 ) having a bottom and sidewalls ( 9 ), said sidewalls having perimetral flap ( 6 ); b) a complementary cover ( 2 ); c) a printed circuit board ( 3 ) having an upper and a lower surface with electrical and electronic components ( 4 ) mounted upon both said upper and said lower surfaces, dimensioned to mount within said box ( 1 ) on said perimetral flap ( 6 ) defining a chamber ( 7 ) housing said electronic components ( 4 ) mounted on said printed circuit board ( 3 ) lower surface; and d) a resin mass ( 8 ) poured in liquid state onto said circuit board ( 3 ) upper surface filling the space defined by said printed circuit board ( 3 ) upper surface, said perimetral flap ( 6 ) and said sidewalls ( 9 ) and solidifying thereon, thereby forming a humidity protective layer over said printed circuit board upper surface and sealing said chamber ( 7 ); and said leak tight system further characterized as having a second printed circuit board ( 3 ′) arranged in a vertical position inside the box ( 1 ) in a side receptacle defined by a partition wall ( 13 ) having a height exceeding the upper edge of said second printed circuit board ( 3 ′), suitable to be covered by resin ( 8 ).