Patent ID: 6484413
Filing Date: 2002-11-26
Classification: B01D

Abstract:
An air drier having a replaceable cartridge, the air drier comprising a base member with means for supplying and carrying away air to and from the cartridge, respectively, a container, releasably attached to the base member, a cartridge inserted into the container, which cartridge is divided by a cylindrical dividing wall into a central compartment, which compartment contains desiccant, and an outer annular compartment, characterized in that the cartridge is provided at its top end with means for allowing only air communication inside the container between the two compartments and at its bottom end with means for allowing supply of air to either of the compartments and removal of air from the other of the compartments, and in that at least the central compartment is provided with individual spring means for compressing the desiccant therein.