Patent ID: 7465314

Claim:
A desiccant cartridge for removing moisture from a refrigerant, said desiccant cartridge comprising: a cup member having: an open end; a closed end opposite said open end, said closed end defining a base; an outer sidewall having an interior surface free of protrusions; and a tubular portion extending upward from said base, said tubular portion defining a passageway through said cup member; whereby said tubular portion cooperates with said interior surface of said sidewall to form an annular chamber within said cup member; a desiccant disposed within said cup member; and a cap member having a planar body member, said planar body member having: an upper surface; a lower surface; an outer marginal periphery; a central aperture extending axially between said upper surface and said lower surface; and a plurality of fingers located on said outer marginal periphery of said cap member, said plurality of fingers extending at an angle with respect to said planar body of said cap member so as to create a one-way lock whereby said cap member is locked to said interior surface of said outer sidewall upon assembly of said cap member to said cup member.