Abstract: A spraycoating powder feed apparatus includes a powder pump of which the direction of feed is reversible and a conduit switch configured to alternately link either of two powder conduits to a powder hookup of the powder pump as a function of the conveyance direction of the powder pump.

Abstract: A coating powder feed unit containing a powder pump which in a suction operating mode aspirates coating powder into a powder chamber (30) and in a pressure operating mode expels coating powder by means of compressed air out of the powder chamber (30). Said unit includes a pressure tester (64) measuring the compressed air pressure and generating a test signal based on the measured compressed air pressure.

Abstract: A powder spraycoating gun and its gun housing. The spraygun housing is a plastic, integral body constituting a stock fitted with a powder discharge tube and a grip fitted with a powder intake tube.

Abstract: A spraycoating powder feed apparatus. It contains a powder pump of which the direction of feed is reversible and a conduit switch to alternatingly link either of two powder conduits to a powder hookup of the powder pump as a function of the conveyance direction of the powder pump.

Abstract: A powder spraycoating gun and its gun housing. The spraygun housing is a plastic, integral body constituting a stock fitted with a powder discharge tube and a grip fitted with a powder intake tube.

Abstract: In a pump system for supplying powder, in particular coating powder, to a powder coating apparatus, time controller is used to introduce compressed gas into a metering chamber as a function of the predetermined delay time elapsed since a predetermined operational point for the purpose of expelling a quantity of powder that was introduced into the metering chamber until the end of the time delay.

Abstract: A pump system for powder, in particular coating powder, and powder coating apparatus. A time controller (74) is used to introduce compressed gas into a metering chamber as a function of the predetermined delay time elapsed since a predetermined operational point for the purpose of expelling a quantity of powder that was introduced into said metering chamber until the end of said time delay.

Abstract: The connection element (1) is preferably provided with two retaining collars (5, 5′) which enclose the connection sections (2, 2′) which do the holding together. The retaining collars are releasably connected to one another or held against one another by way of fastening elements, preferably screw bolts (6). Each retaining collar consists of at least two segments (9a, 9b). With this the fastening elements have additionally also still the function of holding together the two segments. For releasing the connection at least one of the segments can be pivoted open.

Abstract: Extractor (21) has extraction vessel (24) to which reflux line (26) is molded in one piece. Valve (1) which can be opened to allow the extract to flow back from extraction vessel (24) into distillation vessel (22) is sealed into reflux line (26). Valve (1) can be triggered depending on the height of the solvent level in extraction vessel (24).