Patent ID: 8146610

Claim:
A multi-dosing detergent delivery device, the device comprising a housing adapted for receiving therein a cartridge having a plurality X of chambers each accommodating a detergent composition, wherein said housing is substantially cylindrical and each compartment occupies a nominal 360/X angular degrees of space, a directing means to direct, in use, wash liquor selectively into a chamber of the cartridge to contact the detergent composition therein and an outlet to allow the detergent loaded wash liquor to exit the device, wherein the device further comprises indexing means for automatic movement of said cartridge in use relative to said directing means during and subsequent to a wash cycle so as to cause a neighbouring chamber to be in an exposed, ready to be used, position prior to a next washing cycle, and wherein during a heating phase of a washing cycle said indexing means is arranged to rotationally advance said cartridge relative to said housing by a percentage Z % of said nominal 360/X angular degrees and, during and subsequent to a final cooling phase of a washing cycle to further rotationally advance said cartridge relative to said housing by a percentage (100-Z) % of said nominal 360/X angular degrees.