Abstract: A spray nozzle assembly for atomizing a medium through a nozzle channel, comprising a first channel portion which is tapered by two lateral surfaces facing each other to form an elongate narrow cross-sectioned surface, a passage orifice disposed in the narrow cross-sectioned surface the cross-sectional area of which is smaller than is the narrow cross-sectioned surface, and a second channel portion adjoining the passage orifice in the direction of medium flow which has two opposed lateral surfaces separating from each other with an increase in distance from the passage orifice, whose edges facing the passage orifice extend crosswise to the longitudinal direction of the narrow cross-sectioned surface, characterized in that the nozzle channel having the two channel portions and the passage orifice are configured inside an integrally formed plastic component.

Abstract: Oriented pump having a push-member-distributor (3) axially and angularly movable including at least one lug (35) cooperative with a blocking ramp having an indexed abutment for preventing and allowing at will the depression of the push-member and the disengagement of the push-member from bearing on the head of the piston (2). The seal is maintained between the push-member and the rod of the piston in all positions and the push-member is axially retained independently of the piston. The push-member is oriented on the neck of a given container at will when assembling the pump.

Abstract: A sterile package for liquid and semi-liquid fluids comprises a container (1) containing the product to be dispensed (2). It is hermetically sealed by a breakable membrane seal (3) until first use, and includes an axial tube (4) extending from below the seal down to the bottom of the container (1). A dispensing head or cap (5)is fixed onto the neck (12) of the container and comprises a manually actuated member (6) for perforating the seal and for putting the dip tube into communication with a dispensing passage (7) which extends through the cap. The perforating member (6) is tubular, sliding axially and telescopically at one end of the dispensing passage (7). It comprises a snap-engagement mechanism (8) co-operating, at the end of its travel and after perforation of the seal (3), with complementary snap-engagement mechanism (10) on a fixed element of the package to cause the perforating member (6) to engage with the dip tube (4) in a positive sealing manner.

Abstract: In a valve assembly for a pressurized fluid dispensing container, such as those commonly known as aerosol cans, the filling with propellant gas at the very high speed and pressure needed to meet current production rates presents problems. The invention involves crimping the center boss of the sheet metal mounting cup in such a way, and at a point below the enlarged head portion of the valve housing, that the part of the boss above the crimp and around the valve housing bows outwards to provide clearance for "gassing". There are notches in the lower part of the outside of the head portion but these stop short of the upper face of the head. The valve stem may also have external axial grooves placed to increase the effective cross-sectional area during gassing.

Abstract: In a valve assembly for a pressurized dispenser, such as of the kind commonly known as aerosol cans, a novel arrangement is proposed for sealing the spray tip or button to the ferrule or center boss of the mounting cup of the valve during `gassing`. An inwardly directed annular shoulder formed in the top wall of the ferrule or center boss is engaged by an outwardly facing annular surface on the underside of the spray tip and the higher the pressure the better the seal. As the spray tip no longer needs to be as flexible as hitherto it can be made of polypropylene. A complementary outward-facing shoulder on the underside of the top wall helps to locate the rim of the valve shell and thereby to resist displacement of the gasket during gassing.

Abstract: The container valve housing is provided with two concentric bearing walls having different heights, the outer bearing wall being fitted with a gasket which is traversed by the valve stem and the inner bearing wall being applied against the gasket so as to form an internal chamber which communicates with the product to be dispensed. An annular wall between the two bearing walls is provided with filler openings and with at least one independent calibrated bleeder orifice or tap for the admission of propellant gas from the headspace of the container into the internal chamber.

Abstract: An aerosol container valve which achieves a high standard of reliability comprises a gasket placed around the valve stem and held in position between the valve cup and the valve housing. The gasket is maintained compressed between the cup and the housing at a number of point locations spaced at a distance from each other and from the central bore traversed by the valve stem, the point locations being spaced at intervals on a circumference which is coaxial with the central bore.

Abstract: In a method for the relative orientation of the spray-discharge valve actuator and actuator nozzle of a container with respect to a protective cover which is designed to operate the valve actuator, the cover is brought closer to the actuator in coaxial relation thereto, the cover and actuator are brought into the desired relative orientation with friction between a radial lug carried by the actuator and a helical ramp carried by the cover and inclined at an angle of slope of at least 45.degree. with respect to the axis. The cover is then brought in a movement of axial displacement to a position of operation of the actuator on the container.

Abstract: A tilt-type aerosol dispensing valve is made child-resistant by arranging that the actuating button is axially movable between a free position (in which it can be operated) and a locked position in which parts of the button engage part of the valve mounting to prevent tilting. For example the button may have a skirt which, in the locked position, fits over the central boss of the valve mounting cup. The overcap can be arranged to push the button to the locked position automatically as the overcap is applied.

Abstract: A valve assembly for a small hand-held pressurized dispenser, such as an aerosol can, comprising the known form of valve mounting cup provided with a boss having a top wall and a peripheral side wall, a valve housing located at least partially in the boss and carrying a spring-loaded valve member, and a gasket of a flexible, resilient material trapped between and forming a seal between a rim on the housing and the top wall. The assembly is distinguished by the feature of an annular step in the boss facing away from the top wall and a flange on the valve housing which engages against the step to define the distance between the rim and the top wall and thereby limit the sealing pressure applied to the gasket. The flange may be integral with the rim in which interruptions in the step form gassing paths for filling the dispenser, or alternatively the flange and rim are separate in which case discontinuities such as notches and perforations in the rim and flange form a gassing path.

Abstract: A spray tip or button comprising a tip body, a break-up insert mounted in a recess provided in said body and communicating with a passage for admission of a fluid, and at least one intermediate member interposed in the recess between the passage and the insert, the intermediate member defining at least one metering orifice for the passage of the fluid into an expansion chamber between that chamber and at least one channel opening in a fluid collecting chamber of the insert.

Abstract: Dispensing cap for valves for aerosol containers, comprising a stationary body designed to be secured to the container and a dispensing push button which is designed to be connected to the actuating stem of the valve, wherein the body has a deformable portion which is hingedly or pivotally mounted on the remainder of the body at its two ends and which can be displaced inwards into the body for actuating the push button, and a frangible device which acts as a tamper-proofing device and which initially is connected first to the deformable portion of the body at at least two points lying on opposite sides of a hinge or pivotal connection of the deformable portion, and wherein the device, until the purchaser tears it off, prevents the deformable portion from being pressed inwards into the body.

Abstract: A manually-operated, reciprocating pump for liquids comprising a pump body with a slidable piston, the piston being manually moved in one direction by a manually-operated actuating member and is resiliently-returned by a spring; the delivery stroke of the piston is disengaged from the actuating member during the return stroke so that the discharge is independent of the movement of the actuating member.

Abstract: An actuator assembly for the pumps or valves of small hand-held dispensers, especially aerosol containers, which are actuated by depression of an actuator member such as a button, includes a stationary component adapted to be mounted on a pressurized dispenser and a collar in screw-threaded engagement with the stationary component and surrounding an actuator member, which collar when tightened down on its screw prevents depression of the actuator member but when turned to slacken it back allows such movement. Preferably the collar moves downwards to tighten it and this movement may be translated into upward movement in opposition to depression of the actuator member by an arrangement of rocking levers.