Patent ID: 6669056
Filing Date: 2003-12-30
Classification: B05B

Abstract:
A foaming device capable of generating foam by mixing a volume of air with a quantity of liquid, the device being connectable to a tank of the liquid and comprising:a resiliently deformable diaphragm enclosing an air chamber capable of containing the volume of air that is to be mixed with the quantity of liquid, the resiliently deformable diaphragm being capable of changing from a rest configuration of the device to a deformed configuration of compression of the device for expulsion of the volume of air; a liquid chamber capable of containing the quantity of liquid that is to be mixed with the volume of air, the liquid chamber being capable of changing from a rest configuration of the device, in which it defines maximum volume, to the deformed configuration of maximum compression of the device in which it defines a minimum volume, wherein the resiliently deformable diaphragm is shaped in such a way as to bring about, an increasing rate of flow of expelled air from the air chamber as the device changes from the rest configuration to the deformed configuration of compression.