Abstract: A soot reservoir for an exhaust gas scrubbing system for an internal combustion engine has a housing, having an inlet for introducing a soot-laden carrier flow diverted from the exhaust gas flow and an outlet for the escape of the scrubbed carrier flow, a soot filter disposed between the inlet and outlet for retaining soot particles, and a removable collecting container for receiving the trapped soot. To attain a large storage capacity of the collecting container, a number of compacting balls are placed loosely in it. Hopping and rolling movements of the balls caused by the motion of the vehicle driven by the engine produce a considerable increase in the settled apparent density of the soot deposited in the collecting container. With the same collecting container volume, about 10 times as much soot can be held, when compared with conventional soot reservoirs.

Abstract: A handgun such as a pistol or revolver, with a grip for handling the weapon, to be held by the hand using the gun, and with a second, additional grip connected to the weapon for the second hand supporting the weapon, wherein the second grip (13) is located at the lower end of the first grip (11) of the weapon (12) and projects outwardly to one side from the first grip (11).