Abstract: A fluid pulsator (10) has a main housing (20) having an outlet conduit (24) projecting into a chamber (25) defined by the front of the main housing (20). A primary piston (30) is reciprocally translatable within the main housing (20) and has fluid conduits (34) for fluid flow through its body. A plunger (40) is spring-loaded and reciprocally translatable through the primary piston (30). The head (42) of the plunger abuts the front end of the primary piston (30) when the plunger (40) is in its retracted position. The main housing (20) has an abutment in the form of a flange (26) that defines the rearwardmost position of the primary piston (30). The main housing (20) contains a mechanism (21) for engaging the end of the plunger (40) so as to maintain the plunger (40) in its forwardmost position until released. Fluid flows (11) generally from the posterior portion of the main housing (20) through the primary piston (30) toward the anterior end.

Abstract: The invention relates to an aerosol nozzle, comprising a socket (1) provided with an abutment surface for a hollow stem (2) in an aerosol container and therebelow an expansion chamber (3) with a nozzle orifice (4) in its wall. The distance between the bottom edge of nozzle orifice (4) and the abutment surface of socket (1) in the longitudinal direction of the socket does not exceed the outer radius of the hollow tube and that the nozzle orifice is located within a wall area defined by the end edge of the hollow tube and the intersecting line between such a cone and the wall of expansion chamber (3), which cone contacts the inner edge of the hollow stem, has its apex inside the hollow stem on its center line, and has a cone angle of 40.degree..