| 摘要 |
The piston (51) has a body including a drive side (54) transverse to a longitudinal axis and opposite a conveying side (53) of the body. A circumferential piston jacket (5) of the body connects the sides and merges into a projection (56) on the conveying side. An annular guide element (57) of the jacket is placed in a plane transverse to the axis and spaced a distance from conveying side. An annular scraper element (58) extends from the jacket. The element includes a surface in a plane transverse to axis and spaced another distance from the conveying side smaller than the former distance. An independent claim is also included for a discharge apparatus comprising a cartridge having a longitudinal axis. |
