Abstract: A dispensing device comprising a flexible inner container having a valve unit for dispensing a filling substance present in the inner container and an outer container sealingly engaged with the inner container. Pressurized gas present in an intermediate space between the outer and inner containers is used to generate an expulsion force for discharging the filling substance. To simplify manufacturing and make lower quantities economically feasible to manufacture, while also increasing the metering accuracy of the discharge of the filling substance the intermediate space is connected to an external pressurized gas source.

Abstract: A method and device for producing a fragranced air stream for fragrancing rooms, objects or the like, wherein fragrance is applied to a strip-like fragrance carrier (4) which is moved in an evaporation duct (1) through which fresh air flows. The fragrance is applied onto the moving fragrance carrier (4) by means of specific spraying before the fragrance carrier (4) enters the evaporation duct (1), and the fragrance carrier (4) is discarded as waste after exiting the evaporation duct (1).

Abstract: A method and an arrangement for filling a second storage container with compressed hydrogen or helium from a first storage container are described, wherein the first and the second storage containers are connected via at least one line, in which at least one valve is disposed. According to the invention, a switching valve (b, b?, b?) controlled by its own medium or a foreign medium is used as a valve, wherein the set pressure of the switching valve (b, b?, b?) is fixed by the maximum permissible operating pressure of the second storage container (B, B?, B).

Abstract: A device for the pressure reduction of a pressurized medium, wherein the medium is supplied to a consumer or system, which is connected downstream, after a pressure reduction has taken place and the consumer or the system, respectively, encompasses a specified design pressure. Provision is made for two pressure regulators connected in series, as well as for corresponding valves, which serve for the pressure reduction of the pressurized medium. A mobile transport device, which encompasses such a device, is further proposed.

Abstract: A method and device for producing a fragranced air stream for fragrancing rooms, objects or the like, wherein fragrance is applied to a strip-like fragrance carrier (4) which is moved in an evaporation duct (1) through which fresh air flows. The fragrance is applied onto the moving fragrance carrier (4) by means of specific spraying before the fragrance carrier (4) enters the evaporation duct (1), and the fragrance carrier (4) is discarded as waste after exiting the evaporation duct (1).