| 摘要 |
The diffusing device operates without a propellant gas, without a pump and without a delivery pipe and comprises a bag (2) for the products to be diffused, a valve (1) and a diffuser (10). Fixed to the valve in a leaktight manner is the bag (2) made from deformable material whose empty volume is such that its walls do not distend during the filling operation and which bag is placed in a tube (3) made from natural rubber. The elastic modulus and the thickness of the walls of the tube are chosen as a function of the pressure with which it is desired to expel the product from the bag (2). The assembly comprising the valve (1), bag (2) and tube (3) made of natural rubber is placed in a protective casing (5). <IMAGE> |
