Patent ID: 8360284
Filing Date: 2013-01-29
Classification: B05B

Abstract:
1. Dispenser of fluid product comprising a ring nut ( 2 ) able to be associated with a container of a fluid product and a dispensing head ( 7 ), substantially hollow and coaxially slidable relative to said ring nut ( 2 ); said dispensing head ( 7 ) comprising a closing chamber ( 13 ) positioned inside said dispensing head ( 7 ) and a dispensing nozzle ( 11 ) to allow the escape of said fluid product; wherein said dispensing head ( 7 ) further comprises a deformable membrane ( 14 ) fastened to said ring nut ( 2 ) and a top wall ( 9 ) facing said membrane ( 14 ) and defining said dosing chamber ( 13 ) in combination with said membrane ( 14 ); said top wall ( 9 ) being movable between a first position, distal from said ring nut ( 2 ), in which a volume of said dosing chamber ( 13 ) is greatest and said dosing chamber ( 13 ) is isolated and at least in part filled with said fluid product, and a second position, proximal to said ring nut ( 2 ), in which volume of said dosing chamber ( 13 ) is smallest; wherein said deformable membrane ( 14 ) comprises a plurality of radial stiffening ribs ( 29 ) positioned on a surface ( 14 b ) external to the dosing chamber ( 13 ) of said membrane ( 14 ) to favour the elastic return from a deformed configuration to a non deformed configuration of said membrane ( 14 ).