Patent ID: 7125189

Claim:
A device for applying a product, the device comprising: a container configured to contain a product; a duct associated with the container, the duct defining an axis and a passage in permanent communication with the container; and an applicator, the applicator comprising material permeable to the product and defining an axial length, the applicator comprising a side wall, a substantially closed first end defining an application surface, and an open second end, wherein the applicator and the container are intended to be coupled together, wherein at least a portion of the axial length of the applicator is located around the duct, wherein the applicator is configured such that, when the applicator and the container are coupled together and there is an absence of axial stress exerted on the application surface, a) at least one cavity is formed between a free end of the duct and an internal surface of the applicator facing the free end of the duct, and b) at least one portion of the applicator lies above the at least one cavity and has a thickness along a direction of the axis of the duct that is less than the thickness of the side wall in a direction substantially perpendicular to the axis of the duct, wherein the device is configured so that the at least one cavity defines a volume capable of varying, and wherein the duct extends into the applicator along a distance greater than a thickness of the at least one portion of the applicator lying above the at least one cavity.