Abstract: A lance, in particular for jointly dispensing a pressurized fluid and an additive for penetrating walls, includes a lance body, a handle arrangement, multiple channels and actuator arrangements interacting therewith, a nozzle arrangement as well as at least one container for the additive. The actuator arrangements selectively control the fluid being conducted in the first channel, the additive being conducted in the second channel, and the ambient air being conducted in the third channel to a first nozzle body. The third channel forms a line connection between the ambient air and a mixing chamber of the first nozzle body. The second actuator arrangement with its second actuator directly acts on the third channel and indirectly controls the admixing of the additive via the second channel into the mixing chamber.

Abstract: The invention relates to a roller shutter system for a motor vehicle body, in particular for a fire brigade vehicle, with a roller shutter armor (26) formed by slats (25) connected in an articulated manner to one another. Guide arrangements (27) extend on both sides of the roller shutter armor (26) between a floor virtually as far as a ceiling of a machine body. The roller shutter armor (26) is provided with an opening and locking device on an end slat facing the floor. The guide arrangement (27) is formed by a first guide profile (34) which is connected to the machine body and forms at least one guide track (51). A further guide profile (52) is detachably connected to the first guide profile (34). An end profile (65) which, by means of at least one elastic sealing lip (68), covers an end region of the slats (25), is arranged on the further guide profile (52).