US Patent 7530752 Applicator device for applying a substance

A device for applying a substance may comprise a receptacle configured to contain the substance, an applicator comprising an application member configured to be inserted into the receptacle so as to become loaded with the substance, and a magnetizable or magnetic wiper member disposed in such a manner so as to permit the application member to pass therethrough while the application member is being removed from the receptacle. The wiper member may be made of a material that is impermeable to the substance.