Dye wafer retention in a desiccant container

摘要

A desiccant containing cartridge (10) has a cap (12) and a generally cylindrically cross-sectioned cup (14) for holding desiccant particles (16) and a dye wafer (18). The cup (14) includes spaced inner and outer wall portions (20, 24) connected by a transverse portion (28) to define a chamber (30) having an opening (32) for the placement of a dye wafer (18) and desiccant particles (16). The cap (12) has a planar portion (52) having outer circumference (53) and inner circumference (54) defining aperture (55) for receiving inner wall portion (20) of the cup (14) and being designed for receipt in chamber (30) to cover opening (32). Cap (12) further includes a peripheral flanged portion (56) extending transversely from planar portion (52), and having tabs (100) with an edge portion (102) which permit cap (12) to cooperate with outer wall portion (24) so that cap (12) can be retained within chamber (30) in one of a number of axially spaced positions to prevent shifting of dye wafer (18) and desiccant (16), thereby leaving a substantial portion of desiccant (16) uncontaminated and useful for LOI testing.