Abstract: A device for the homogenization of a liquid contained in a container comprises a pipe device possible to stick down in the container, said pipe device including an inner pipe (5′) and an outer pipe (6′). A cup-like collar (15) with a bottom plate (16) and a circumfering flange (17) is mounted on the inner pipe. There are openings (18, 18′) in the flange (17) which co-operate with analogous holes (19, 19′) in the outer pipe (6′). When a hole (19′) is adjusted in flush with an opening (18), the return liquid is ejected from a ring-shaped gap (9) in a radial jet. When a hole (19) is adjusted in a position distanced from an opening (18), the return liquid which passes the hole will meet the inside of the flange (17) and be deflected in a upwardly directed flow in the container. By setting the collar (15) in a suitable position, optimum homogenization of the liquid may be attained.

Abstract: A spray gun (1) includes a head (2) having an element (5) for connecting a liquid hose (7) as well as a handle member (3) having a member (6) for connecting a compressed air hose (8). The liquid hose (7) is, along the major part of the length thereof, drawn inside the wider compressed air hose (8), a coupling part (10) of the multi-way type being connected to the connection member (6) of the handle member (3). The coupling part includes a main duct (11) for compressed air, as well as at least one branch duct (14), extending at an angle to the main duct, through which the liquid hose (7) is drawn and which includes at least one sealing (18) which air-proofly cuts off an annular gap between the inside of the branch duct and the outside of the liquid hose.