CARTRIDGE ASSEMBLY FOR A DISPENSING DEVICE

摘要

Included are embodiments of a cartridge assembly (102) for modifying a treating surface. These embodiments may include a reservoir (604) for storing a treatment composition, where the treatment composition is being applied to the treating surface. The cartridge assembly (102) may also include a body portion (730) that is coupled to the reservoir (604) and configured to engage with a cartridge housing. The body portion (730) includes a plurality of engagement rails(502a, 502b, 502c, 502d, 502e), including a primary engagement rail and an auxiliary engagement rail (502f), where the auxiliary engagement rail (502f) has a shorter length than the primary engagement rail to facilitate engagement with the cartridge housing in a desired configuration.