Patent ID: 8152397

Claim:
A product replacement unit ( 1 ) configured to be removably connected to a base stick module ( 3 ; 4 ) such that the replacement unit ( 1 ) may be filled stored and sold separately from the base stick module ( 3 ; 4 ), the product replacement unit ( 1 ) comprising a replacement housing ( 5 ) with a reservoir ( 6 ) in which a product is present in one of the forms comprising creamy, liquid or pasty products, an applicator ( 7 ) which is in a fluid connection with the reservoir ( 6 ), a piston ( 9 ) which is guided for displacement in the replacement housing ( 5 ) for feeding the product to the applicator ( 7 ), a piston connecting component ( 12 ) which is present on the piston ( 9 ) for cooperating with a push rod connecting component ( 13 ) of a piston push rod ( 11 ), the piston push rod ( 11 ) formed as part of a feed device ( 17 ; 32 ) of the base stick module ( 3 ; 4 ) for extending the piston ( 9 ), wherein the piston push rod ( 11 ) is formed to establish a push connection with the piston ( 9 ) and is formed to be positioned on the side of the piston ( 9 ) remote from the product, and a closure cap ( 15 ) which seals the replacement housing ( 5 ) on the side of the piston ( 9 ) to store the replacement unit ( 1 ), wherein the replacement housing ( 5 ) comprises latch members ( 16 ) with which the closure cap ( 15 ) is latched.